Document:

<PAGE>   1
                                                                   Exhibit 10.19

                               SEVERANCE AGREEMENT

         This Severance Agreement (the "Agreement") is dated November 3, 1999,
between InKine Pharmaceutical Company, Inc. (the "Company") and Taffy J.
Williams ("Williams").

         Williams has been employed by the Company since 1995, and is currently
employed as President and Chief Operating Officer of the Company pursuant to the
terms of an Employment Agreement with the Company dated as of November 6, 1997
(the "Employment Agreement"). The Company and Williams have mutually agreed to
terminate the Employment Agreement and Williams's employment with the Company on
the terms and conditions hereinafter set forth.

         NOW, THEREFORE, in consideration of the mutual promises and agreements
set forth herein, and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Company and Williams,
intending to be legally bound, agree as follows:

         1. Termination of Employment and Employment Agreement.

                  a. Williams hereby resigns as an employee of the Company, as
President of the Company, as a Director of the Company, and as an employee,
officer and director of each Affiliate (as defined below) of the Company. The
Company accepts such resignations, effective as of the date hereof. "Affiliate"
means any partially-owned or wholly-owned subsidiary of the Company and any
entity controlled by, controlling or under common control with the Company.

                  b. The Employment Agreement is terminated and of no further
force and effect from and after the date hereof.

         2. Severance Payments and Benefits.

                  a. The Company shall pay Williams as a "Severance Payment" the
aggregate sum of $256,667, subject to deductions required by law, which is
equivalent to fourteen months severance pay for the period November 1, 1999
through December 31, 2000 (the "Severance Period"). The Severance Payment shall
be made in equal semi-monthly installments of $9,166.67, in arrears, less
deductions as aforesaid, during the Severance Period.

                  b. The Company shall pay Edward J. Kelleher's actual and
customary fee, but not in excess of $22,000, for providing Williams with
outplacement advisory and counseling services (the "Outplacement Payment"). Such
payments shall be made to Kelleher upon presentation of invoices to the Company.

                  c. Williams shall be paid the sum of $19,730.92, representing
unused vacation time, upon execution of this Severance Agreement.

                  d. Williams holds options to purchase a total of 1,871,182
shares of the Company's common stock (collectively, the "Options") of which a
portion are currently exercisable. A schedule of the Options is set forth on
Exhibit "A" hereto. The Options are exercisable at various times through June,
2000 and April, 2009. The Company agrees that, regardless of their stated
exercise and expiration dates, each of the Options is amended such that it shall
be immediately exercisable from and after the date hereof through the close of
business on June 30, 2003. Except as amended with respect to

<PAGE>   2
 the date of its exercise and expiration, each of the Options shall remain in
full force and effect in accordance with its terms. Williams agrees that from
the date hereof through June 30, 2005 he will not on any day sell in the open
market that number of shares of the Company's common stock which is greater than
twenty percent (20%) of the average daily trading volume of such shares on the
principal exchange or market on which such shares are traded for the three
months immediately preceding the date of such sale. The Company agrees that so
long as it maintains an effective Registration Statement on Form S-8, and so
long as the shares underlying the Options can continue to be be included for
sale and resale in such Registration Statement, the Company will include such
underlying shares therein at no cost to Williams.

                  e. It is understood and agreed that the Severance Payment, the
Outplacement Payment and the changes to the terms of the Options will provide
Williams with compensation substantially in excess of that to which Williams
would otherwise be entitled under the existing policies of the Company.

         3. No Further Obligations of the Company. The payments and other
consideration and benefits to Williams set forth in this Severance Agreement
shall be in lieu, and in complete discharge, of all obligations owed by the
Company to Williams. Without limiting the generality of the foregoing, Williams
shall have no right to receive any payments or benefits from or on behalf of the
Company on account of automobiles, health, disability or life insurance or other
items. Williams acknowledges he is not entitled to coverage under COBRA, as he
has not previously maintained health insurance through the Company. Nothing
herein shall affect Williams's rights with respect to his interests in the
Company's 401(k) Plan.

         4. Conditions of Payments and Option Adjustments. The Company has
agreed to provide to Williams the severance payments and benefits set forth in
Section 2(a) -(d) hereof contingent upon Williams's honoring the release of
claims and covenant not to sue in favor of the Company and its Affiliates set
forth in Section 12 below, and Williams's continued compliance with the other
provisions of this Agreement.

         5. Non-Disclosure. Williams hereby agrees that he shall not, at any
time hereafter, disclose or use for any purpose confidential information of the
Company (or any of its Affiliates), except as required by applicable law or
legal process; provided, however, that confidential information shall not
include any information known generally to the public or ascertainable from
public or published sources (other than as a result of unauthorized disclosure
by Williams) or any information of a type not otherwise considered confidential
by persons engaged in the same business or a business similar to that conducted
by the Company. Williams acknowledges and agrees that the Company will suffer
irreparable injury in the event of any material breach of this Section 5, that
damages resulting from such injury will be incapable of being precisely
measured, and that the Company will not have an adequate remedy at law to
redress the harm which such violation shall cause. Therefore, Williams agrees
that the Company shall have the rights and remedies of specific performance and
injunctive relief, in addition to any other rights or remedies that may be
available at law or in equity or under this Agreement, in respect of any
failure, or threatened failure, on the part of Williams to comply with the
provisions of this Section 5, including, but not limited to, temporary
restraining orders and temporary injunctions to restrain any violation or
threatened violation of this Section 5 by Williams.

                                      -2-
<PAGE>   3
 6. Certain Representations of Williams and the Company.

                  a. As an inducement to the Company to enter into and perform
this Severance Agreement, Williams represents and warrants to the Company the
following.

                           (i) All records, files, documents and equipment, all
         information relating to employees (other than himself), technology,
         Company licensees, licensors and suppliers, and any other materials
         that in any way relate to the business of the Company and its
         Affiliates which Williams has accumulated during his employment by the
         Company, other than information and documents publicly known or
         disseminated, are the property of the Company, including all duplicates
         and copies of any of the foregoing. All such property, including all
         files, letters, memoranda, reports, records, computer programs,
         listings or other written, photographic or other tangible material
         concerning the business or the financial affairs of the Company or any
         Affiliate has been returned to the sole possession of the Company.
         Williams has not retained duplicates of any of the foregoing. Nothing
         contained herein shall be construed to limit Williams' ability to use
         "know-how" which is personal to him, provided the information or
         documents used by him are publicly known or disseminated, or
         confidential to Williams or a third-party,

                           (ii) Williams has disclosed promptly in writing to
         the Company all inventions, ideas, discoveries, and improvements,
         whether or not patentable, conceived by Williams during the period of
         Williams's employment with the Company, whether alone or with others,
         and whether or not during regular business hours, or on the Company's
         premises or with the aid of Company materials, which pertain in any way
         to Williams's work with the Company or to any business activity which
         is or at the time of such conception may be carried on by the Company
         or an Affiliate. All such inventions, ideas, discoveries, and
         improvements are the property of the Company, to which Williams hereby
         assigns and transfers forever all Williams's rights, titles and
         interests. Williams, upon reasonable request by the Company and at the
         Company's sole expense, will prepare and execute applications for
         patents for such inventions, ideas, discoveries, and improvements, both
         in the United States and in foreign countries, and will do everything
         necessary to ensure the issuance of such patents.

                  b. As an inducement to Williams to enter into and perform this
Severance Agreement, the Company represents and warrants to Williams the
following.

                           (i) This Severance Agreement has been duly authorized
         by all necessary corporate action on the part of the Company. Without
         limiting the generality of the foregoing, no further corporate action
         need be taken to effect the change in the terms of the Options set
         forth herein.

                           (ii) The Company has reserved, and at all times will
         reserve a sufficient number of unissued shares of its common stock to
         be issued to Williams upon exercise of the Options.

                                      -3-
<PAGE>   4

                           (iii) The persons executing this Severance Agreement
         on behalf of the Company are duly authorized to do so.

                           (iv) The shares underlying the Options are currently
         subject to an effective Registration Statement on Form S-8.

         7. Business Goodwill. At all times following the date hereof, Williams
shall make no comments or take any other actions, direct or indirect, that will
disparage the Company or its officers and directors in such capacity or
disparage its or their business reputation or goodwill. At all times following
the date hereof, the Board of Directors of the Company will take reasonable
efforts to instruct its members and each officer of the Company not to make
comments or take any other actions, direct or indirect, that will disparage
Williams or his business reputation or goodwill. For a period of three(3) years
from the date hereof, Williams agrees to provide reasonable assistance to the
Company with respect to all reasonable requests to testify in connection with
any legal proceeding or matter relating to the Company, including but not
limited to any federal, state or local audit, proceeding or investigation, other
than proceedings relating to the enforcement of this Severance Agreement or
other proceedings in which Williams is a named party whose interests are adverse
to those of the Company.

         8. Non-Solicitation of Employees. During the Severance Period and for a
period of one (1) year thereafter, Williams shall not directly or indirectly:
(i) attempt to hire any employee of the Company or any of its Affiliates; (ii)
assist in such hiring by any other person; (iii) encourage any such employee to
terminate his employment with the Company or any of its Affiliates; (iv)
encourage any customer of the Company or any of its Affiliates to terminate its
relationship with the Company or such Affiliate; or (v) encourage any supplier
of the Company or any of its Affiliates to terminate its relationship with the
Company or such Affiliate. None of the foregoing shall be deemed to prohibit
Williams from responding to an unsolicited request to Williams to provide a
recommendation on behalf of any person.

         9. Covenant Not to Compete. During the Severance Period, and for a
period of ten (10) months years thereafter, Williams may not, as an owner,
officer, director, employee, agent of, or adviser or consultant to a business
enterprise anywhere in the world, engage in the development or commercialization
of a purgative or laxative, TNF or IL-6 as related to inflammatory bowel
disease, drugs or devices used to treat ITP, or thrombospondin technology
(collectively, the "Competitive Technologies"). Each of the Competitive
Technologies is competitive with the technology and products which are being
developed or commercialized by the Company at this time. Notwithstanding the
foregoing, Williams may serve as an owner, officer, director, employee, agent
of, or adviser or consultant to a business entity engaged in Competitive
Technologies if Williams does not participate in any manner with the entity's
activities in Competitive Technology, and if Williams is effectively screened
from such participation. The Company shall have the right to be provided
reasonable assurance or evidence of such screening. Williams acknowledges that
the scope and term of the foregoing restriction is reasonable in light of
Williams's prior roles at the Company, and will not unduly limit his ability to
obtain employment in one or more areas of his expertise.

         10. Consulting Agreement. The Company and Williams may, after the date
hereof, elect to enter into a Consulting Agreement which provides for Williams
to consult with the Company for the purpose of negotiating the terms of a
chemical supply agreement with a third-party supplier.

                                   -4-
<PAGE>   5

         11. Release by Company. The Company, for itself, its wholly owned
subsidiaries and those Affiliates it controls, does hereby release and forever
discharge Williams, his heirs, successors and assigns, of and from all manner of
action and actions, causes of action, suits, debts, dues, accounts, covenants,
contracts, agreements, judgments, claims and demands whatsoever, in law or
equity, which the Company or its Affiliates ever had, now has or which its
successors or assigns, or any of them, has or hereafter can, shall or may have,
for or by reason of any cause, matter or thing whatsoever up to and including
the date of execution hereof, except for any claim or right under this Severance
Agreement. The Company agrees that it shall not file a lawsuit against Williams
to assert any such claims.

         12. Release by Williams.

                  a. Williams does hereby release and forever discharge the
Company, its successors and assigns, and all its Affiliates, and each of their
directors, officers, employees and agents of and from all manner of action and
actions, causes of action, suits, debts, dues, accounts, covenants, contracts,
agreements, judgments, claims, and demands whatsoever, in law or equity,
including, without limitation, claims for any alleged violation of the
Employment Agreement, the Civil Rights Act of 1964s and 1991, the Equal Pay Act
of 1963, the Age Discrimination in Employment Act of 1967, the Rehabilitation
Act of 1973, the Older Workers Benefit Protection Act of 1990, the Americans
with Disabilities Act of 1990, the Family and Medical Leave Act of 1993, the
Pennsylvania Human Relations Act and any other federal or state law, regulation
or ordinance, or public policy, contract or tort law having any bearing
whatsoever on the terms and conditions of employment or retirement of employment
which Williams ever had, now has, or which his heirs, successors or assigns, or
any of them, has or hereafter can, shall or may have, for or by reason of any
cause, matter or thing whatsoever, up to and including the date hereof, except
for any claim or right under this Severance Agreement. Williams agrees that he
shall not file a lawsuit against the Company or any of its Affiliates to assert
any such claims. Nothing in the foregoing release, however, shall affect or
interfere with Williams' rights, if any, to be provided a defense, contribution
and/or indemnification under any applicable federal or state law, insurance
policy, or the by-laws of the Company or any of its Affiliates.

                  b. Williams acknowledges that in arriving at his decision to
agree to the foregoing general release, he has not relied on any
representations, promises or agreements of any kind, including oral statements
by representatives of the Company, except as set forth in this Severance
Agreement.

                  c. Williams acknowledges that he has carefully read and fully
understands the provisions of the foregoing Severance Agreement, including in
particular the general release he has granted the Company in Section 12(a), that
he has had twenty-one (21) days from the date he received a copy of this
Severance Agreement in which to consider entering into this Severance Agreement
that if he signs and returns this Severance Agreement before the end of that
twenty-one (21) day period then he will have voluntarily waived his right to
consider the Severance Agreement for the full twenty-one (21) days. Williams
acknowledges that he has executed this Severance Agreement voluntarily, with
advice of counsel of his choice and with full knowledge of its significance,
meaning and binding effect, including in particular the general release in
Section 12(a).

                  d. Williams acknowledges that he may revoke this Severance
Agreement within seven (7) days of his execution of this document by submitting
a written notice of such revocation to the Company. Williams also understands
that this Agreement shall not become effective or enforceable until the
expiration of that seven (7) day period. If Williams revokes this Severance
Agreement as

                                      -5-
<PAGE>   6
aforesaid, the Employment Agreement shall not be terminated, Williams will have
ceased to be a Director of the Company, and Williams shall promptly return to
the Company all amounts paid to him hereunder.

         13. Miscellaneous.

                  a. Complete Agreement. This Severance Agreement supersedes all
prior agreements and sets forth the entire understanding between the parties
hereto with respect to the subject matter hereof and cannot be changed,
modified, extended or terminated except upon written amendment approved by the
Board of Directors of the Company and executed on its behalf by a duly
authorized officer, and executed by Williams.

                  b. Waiver. The failure at any time to enforce any of the
provisions of this Severance Agreement shall in no way be construed as a waiver
of such provisions and shall not affect the right of either party thereafter to
enforce each and every provision hereof in accordance with its terms.

                  c. Governing Law; Jurisdiction. This Severance Agreement and
performance under it, and all proceedings that may ensue from its breach, shall
be construed in accordance with and under the laws of the Commonwealth of
Pennsylvania.

                  d. Severability. Whenever possible, each provision of this
Severance Agreement shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Severance Agreement
shall be held to be prohibited by or invalid under applicable law, such
provision shall be ineffective only to the extent of such prohibition or
invalidity, without invalidating the remainder of such provision or the
remaining provisions of this Severance Agreement; provided, however, that the
invalidity of the release contained in Section 12(a) determined as a result of
litigation between Williams and the Company, shall nullify the Company's
obligation to provide, and the Company shall be entitled to a return of, any and
all payments made and benefits provided pursuant to this Severance Agreement.

                  e. Binding Effect; Assignment. The rights and obligations of
the parties under this Severance Agreement shall be binding upon and inure to
the benefit of their respective successors, assigns, executors, administrators
and heirs, provided, however, that neither the Company nor Williams may assign
any duties under this Severance Agreement without the prior written consent of
the other.

                  f. Notices. All notices and other communications under this
Severance Agreement shall be in writing and shall be given in person or by
telecopy or, overnight delivery service (e.g., Federal Express), and shall be
deemed to have been duly given when delivered personally or by overnight
delivery, or one day after transmission of a telecopy, as the case may be, to
the respective persons named below:

                                      -6-
<PAGE>   7

         If to the Company:                 InKine Pharmaceutical Company, Inc.
                                            1720 Walton Road, Suite 200
                                            Blue Bell, PA 19422
                                            Attn: Chairman

         If to Williams:                    Taffy J. Williams, Ph.D.
                                            103 Colwyn Terrace
                                            Lansdale, PA 19446

                  g. Advice of Counsel. Williams acknowledges that he has been
advised by the Company to consult with legal counsel of his own choosing with
respect to the subject matter and the terms of this Severance Agreement, that he
has done so and that this Agreement is the product of negotiations between the
Company and Williams.

                  h. Confidentiality. Williams and the Company agree to keep
confidential the existence of this Agreement and the terms unless otherwise
required by law, rule or regulation. Notwithstanding the foregoing, Williams may
disclose the terms of this Agreement to his financial advisers and family
members, subject to such persons' agreeing to maintain the confidentiality
hereof in accordance with the first sentence of this Section 12(h).

         IN WITNESS WHEREOF, the undersigned have executed this Severance
Agreement as of the date first above written.

Attest:                                     INKINE PHARMACEUTICAL COMPANY, INC

   /s/  Robert F. Apple                     By:     /s/  Leonard S. Jacob
---------------------------                    -------------------------------
         Secretary                                        President

                                                   /s/  Taffy J. Williams
                                               -------------------------------
                                                      TAFFY J. WILLIAMS

                                      -7-
<PAGE>   8

                             Schedule A - agreement

OPTION TOTAL      1,871,182                      Today's date         02-Nov-99

<TABLE>
<CAPTION>
GRANT          GRANT        VEST           GRANT           NUMBER      EXERCISE
NUMBER         DATE         DATE                           VESTED       PRICE
------         -----        ----                           ------       -----
<S>       <C>           <C>              <C>             <C>         <C>

     1    09-Jun-95      01-Jan-95          100,000        50,000       $1.13
     1                   09-Jun-96                         25,000       $1.13
     1                   09-Jun-97                         25,000       $1.13
     2    15-Jun-96      15-Jun-97           60,000        20,000       $0.88
     2                   15-Jun-98                         20,000       $0.88
     2                   15-Jun-99                         20,000       $0.88
     3    10-Dec-96      10-Dec-96           40,000        40,000       $0.50
     4    03-Jan-97      06-Nov-97          500,000       500,000       $0.61
     4                   06-Dec-97        1,071,182        29,755       $1.00
     4                   06-Jan-98                         29,755       $1.00
     4                   06-Feb-98                         29,755       $1.00
     4                   06-Mar-98                         29,755       $1.00
     4                   06-Apr-98                         29,755       $1.00
     4                   06-May-98                         29,755       $1.00
     4                   06-Jun-98                         29,755       $1.00
     4                   06-Jul-98                         29,755       $1.00
     4                   06-Aug-98                         29,755       $1.00
     4                   06-Sep-98                         29,755       $1.00
     4                   06-Oct-98                         29,755       $1.00
     4                   06-Nov-98                         29,755       $1.00
     4                   06-Dec-98                         29,755       $1.00
     4                   06-Jan-99                         29,755       $1.00
     4                   06-Feb-99                         29,755       $1.00
     4                   06-Mar-99                         29,755       $1.00
     4                   06-Apr-99                         29,755       $1.00
     4                   06-May-99                         29,755       $1.00
     4                   06-Jun-99                         29,755       $1.00
     4                   06-Jul-99                         29,755       $1.00
     4                   06-Aug-99                         29,755       $1.00
     4                   06-Sep-99                         29,755       $1.00
     4                   06-Oct-99                         29,755       $1.00
     4                   06-Nov-99                         29,755       $1.00
     4                   06-Dec-99                         29,755       $1.00
     4                   06-Jan-00                         29,755       $1.00
     4                   06-Feb-00                         29,755       $1.00
     4                   06-Mar-00                         29,755       $1.00
     4                   06-Apr-00                         29,755       $1.00
     4                   06-May-00                         29,755       $1.00
     4                   06-Jun-00                         29,755       $1.00
     4                   06-Jul-00                         29,755       $1.00
     4                   06-Aug-00                         29,755       $1.00
     4                   06-Sep-00                         29,755       $1.00
     4                   06-Oct-00                         29,755       $1.00
     4                   06-Nov-00                         29,755       $1.00
     5    13-Apr-99                                       100,000       $1.38
</TABLE><PAGE>   1
                                                                    Exhibit 10.2

                             SUBSCRIPTION AGREEMENT

                                                                October 20, 1999

Princeton Video Image, Inc.
15 Princess Road
Lawrenceville, NJ 08648

Ladies/Gentlemen:

         1. Subscription, Purchase and Closing; Purchase Price Adjustment.

                  1.1 The undersigned ("Subscriber"), intending to be legally
bound, hereby subscribes for and agrees to purchase the number of shares (the
"Shares") of the Common Stock, no par value per share (the "Common Stock"), of
Princeton Video Image, Inc., a New Jersey corporation (the "Company"), indicated
on the signature page hereto, at a price of $5.50 per share (the "Purchase
Price") and upon the terms and conditions set forth in this subscription
agreement (this "Agreement").

                  1.2 The Shares subscribed for hereby shall not be deemed owned
by Subscriber, nor shall Subscriber be deemed a holder of securities of the
Company until this subscription has been accepted by the Company and the
Purchase Price for the Shares subscribed for has been paid. Subscriber
understands and agrees that the Company reserves the right to reject this
subscription for the Shares in whole or in part, in its sole discretion, at any
time through the Closing Date (as that term is defined in Section 1.5). This
subscription is subject to allotment. If subscription for the Shares is
oversubscribed, the Company will determine which subscriptions shall be
accepted, in whole or in part.

                  1.3 In the event of rejection of this subscription, or in the
event the sale of the Shares is not consummated for any reason (in which event
this Agreement shall be deemed to be rejected), this Agreement shall have no
force or effect.

                  1.4 Subscriber hereby agrees to deliver the Purchase Price
required to purchase the number of Shares subscribed for hereunder, as that
amount may be reduced pursuant to Section 1.2 hereof, on the Closing Date set by
the Company pursuant to Section 1.5 hereof.

                  1.5 The closing of the transactions contemplated herein (the
"Closing") shall take place at such time as the Company and Allen & Company
Incorporated, as placement agent (the "Placement Agent"), shall determine. The
Placement Agent shall establish and inform Subscriber of the closing date for
such subscription (the "Closing Date") and the date upon which the Purchase
Price shall be delivered to the Company.

                                       1
<PAGE>   2
                  1.6 Payment of the full Purchase Price for the Shares to be
purchased shall be made on the Closing Date by wire transfer of immediately
available funds or at such other time and by such other means as the Company
shall approve. The Company or the Placement Agent will notify Subscriber as to
payment instructions. Upon the Closing Date, certificates representing the
Shares purchased by Subscriber will be delivered by the Company to Subscriber.

         2. Representations, Warranties and Agreements of Subscriber. Subscriber
hereby represents and warrants to the Company, and hereby covenants and agrees
with the Company, (such representations, warranties, covenants and agreements to
survive the Closing Date) as follows:

                           (a) Subscriber has full power and authority to enter
         into this Agreement and to perform its obligations hereunder. All
         requisite action on the part of Subscriber necessary for the
         authorization, execution, delivery and performance of Subscriber's
         obligations under this Agreement and for the purchase of the Shares has
         been taken, and this Agreement, when executed by a duly authorized
         officer of Subscriber, will be a valid and binding agreement of
         Subscriber, enforceable in accordance with its terms, except as such
         enforceability may be limited by (i) bankruptcy, insolvency,
         reorganization or other similar laws and legal and equitable principles
         limiting or affecting the rights of creditors generally and/or (ii)
         general principles of equity, regardless of whether considered in a
         proceeding in equity or at law, and except as rights to indemnification
         hereunder may be limited by Federal or state securities laws.

                           (b) Subscriber has carefully read this Agreement and,
         to the extent Subscriber believes necessary, has discussed with
         Subscriber's counsel and other professional advisor(s) the
         representations, warranties, covenants and agreements which Subscriber
         makes by signing it, and any applicable limitations upon Subscriber's
         transfer of the Shares issuable thereunder. Subscriber acknowledges
         that Subscriber has not relied upon the legal counsel or accountants
         for the Company regarding the transactions contemplated by this
         Agreement, and Subscriber has been advised to engage separate legal
         counsel and accountants to represent Subscriber's individual interest
         and advise Subscriber regarding the structure of, and risks associated
         with, such transactions.

                           (c) Subscriber understands that as a publicly traded
         company, the Company files with the Securities and Exchange Commission
         (the "SEC") various reports, including quarterly and annual financial
         statements, annual reports to shareholders, and proxy statements, and
         that all of such reports, statements and information are available to
         the public, including Subscriber, from the SEC and directly from the
         Company. Subscriber acknowledges that the Company has delivered to
         Subscriber within a reasonable time prior to the execution of this
         Subscription Agreement a copy of the following: (i) the Company's
         Annual Report on Form 10-KSB for the fiscal year ended June 30, 1999
         (without exhibits); (ii) the Company's Current Reports on Form 8-K
         since June 30, 1999 (without exhibits); (iii) the Company's press
         releases since June 30, 1999; (iv) certain Risk Factors relating to the
         transactions contemplated hereunder which are attached hereto as
         Exhibit A; and (v) such other documents, including exhibits to the
         foregoing reports on Forms 10-KSB and 8-K, as Subscriber (and
         Subscriber's attorney, accountant and/or other advisors) deemed
         pertinent in order for Subscriber to

                                       2
<PAGE>   3
         make an informed investment decision (the documents identified in
         clauses (i) through (v) herein are collectively referred to herein as
         the "Documents"). The Documents contain "forward-looking statements"
         about business strategies, market potential, future financial
         performance and other matters. These forward-looking statements are
         predictions. No assurances can be given that the future results
         indicated, whether expressed or implied, will be achieved.
         Consequently, the inclusion of forward-looking statements in the
         Documents should not be regarded as a representation by the Company or
         any other person that these estimates will be realized, and actual
         results may vary materially.

                           Subscriber further acknowledges that Subscriber is
         entering into this Agreement solely on the basis of information
         contained in the Documents and not on the basis of any information,
         representations or agreements made by any other person, and that no
         representations or warranties of any nature have been made to
         Subscriber with respect to the ultimate economic consequences or tax
         consequences of Subscriber's investment in the Company. Subscriber
         acknowledges that any forecasted financial data which may have been
         given to Subscriber is for illustration purposes only and no assurance
         is given that actual results will correspond with the results
         contemplated in any such data.

                           (d) Subscriber acknowledges that Subscriber has had
         the opportunity to ask questions of, and receive answers from, or
         obtain additional information from, the executive officers of the
         Company concerning the financial and other affairs of the Company, and,
         to the extent deemed necessary, Subscriber has asked such questions and
         received satisfactory answers and desires to invest in the Company. In
         evaluating the suitability of an investment in the Company, Subscriber
         has not relied upon any representations or other information (whether
         oral or written) other than as set forth in this Agreement or as
         contained in any documents delivered or answers given in writing by the
         Company to questions furnished to the Company. Subscriber has been
         advised and acknowledges that no Federal or state agency has made any
         finding or determination as to the fairness or merits of an investment
         in the Company and that no such agency has made any recommendation or
         endorsement whatsoever with respect to such an investment.

                           (e) Subscriber is an "accredited investor" as that
         term is defined in Rule 501 of Regulation D promulgated by the
         Securities and Exchange Commission (the "SEC") under the Securities Act
         of 1933, as amended (the "Securities Act"). For this purpose,
         Subscriber understands that an "accredited investor" includes:

                                     (i) any individual who: (A) has a net worth
                  (with spouse) in excess of $1 million; or (B) has had an
                  individual income in excess of $200,000 (or joint income with
                  spouse in excess of $300,000) in each of the two most recent
                  years and who reasonably expects the same income level for the
                  current year; or (C) who is an executive officer or director
                  of the Company;

                                    (ii) any entity in which all of the equity
                  owners or partners are "accredited investors"; or

                                       3
<PAGE>   4
                                   (iii) any corporation or partnership with
                  total assets in excess of $5,000,000 that was not formed for
                  the specific purpose of purchasing the securities subscribed
                  hereunder.

                           (f) Subscriber considers himself/herself/itself to be
         a sophisticated investor in companies similarly situated to the
         Company, and Subscriber has substantial knowledge and experience in
         financial and business matters (including knowledge of finance,
         securities and investments, generally, and experience and skill in
         investments based on actual participation) such that Subscriber is
         capable of evaluating the merits and risks of the prospective
         investment in the Company.

                           (g) Subscriber's current address and, if Subscriber
         is an entity, Subscriber's state of incorporation or organization, are
         as set forth on the signature page hereof. If Subscriber is an entity
         which does not meet the classification set forth under Section
         2(e)(iii) above, each of Subscriber's equity owners and/or partners has
         the same state of residence as the Subscriber's state of organization
         and none of Subscriber's equity owners and/or partners has any present
         intention of moving from such state of residency.

                           (h) Subscriber has been advised and acknowledges that
         the issuance of the Shares will not be registered under the Securities
         Act, in reliance upon the exemption(s) from registration promulgated
         thereunder, and, therefore, are "restricted securities." Subscriber
         also acknowledges that the issuance of the Shares will not be
         registered under the securities laws of any state. Consequently,
         Subscriber agrees that the Shares cannot be resold unless they are
         registered under the Securities Act and applicable state securities
         laws, or unless an exemption from such registration requirements is
         available. Subscriber has been advised and acknowledges that the
         Company is under no obligation to take any action necessary in order to
         make available any exemption for the transfer of the Shares without
         registration.

                           (i) Subscriber is purchasing the Shares solely for
         Subscriber's own account and not as nominee for, representative of, or
         otherwise on behalf of, any other person. Subscriber is purchasing the
         Shares with the intention of holding the Shares for investment, with no
         present intention of participating directly or indirectly in a
         subsequent public distribution of the Shares unless registered under
         the Securities Act and applicable state securities laws, or unless an
         exemption from such registration requirements is available. Subscriber
         shall not make any sale, transfer or other disposition of the Shares in
         violation of state or Federal law.

                           (j) Subscriber has been advised that there is no
         assurance than an active market for the Shares will continue in the
         future. Subscriber is aware that Subscriber's investment in the Company
         is speculative and involves a high degree of risk of loss arising from,
         among other things, substantial market, operational, competitive and
         other risks, and, having made Subscriber's own evaluation of the risks
         associated with this investment, including, without limitation, those
         set forth on Exhibit A, Subscriber is aware and Subscriber has been
         advised that Subscriber must bear the economic risks of a purchase of
         the Shares indefinitely.

                                       4
<PAGE>   5
                           (k) Subscriber acknowledges that the Shares were not
         offered to Subscriber by means of any form of general or public
         solicitation or general advertising, or publicly disseminated
         advertisements or sales literature, including (i) any advertisement,
         article, notice or other communication published in any newspaper,
         magazine or similar media, or broadcast over television or radio, or
         (ii) any seminar or meeting to which Subscriber was invited by any of
         the foregoing means of communication.

                           (l) Subscriber understands and agrees that the
         Company, and all current and future stockholders of the Company, are
         relying on the agreements and representations contained herein.

                           (m) In connection with the purchase of the Shares by
         Subscriber, Subscriber has not and will not pay, and has no knowledge
         of the payment of, any commission or other direct or indirect
         remuneration to any person or entity for soliciting or otherwise
         coordinating the purchase of the Shares, except for fees paid to the
         Placement Agent.

                           (n) Subscriber has been advised and agrees that there
         will be placed on any certificates representing the Shares, or any
         substitution(s) thereof, a legend stating in substance the following
         (and including any restrictions or conditions that may be required by
         any applicable state law), and Subscriber has been advised and further
         agrees that the Company will refuse to permit the transfer of the
         Shares out of Subscriber's name in the absence of compliance with the
         terms of such legend:

                  "The shares represented by this certificate have not been
                  registered under the Securities Act of 1933, as amended (the
                  "Act"), or under any state securities laws and may not be
                  sold, pledged, transferred, assigned or otherwise disposed of
                  except in accordance with such Act and the rules and
                  regulations thereunder and in accordance with applicable state
                  securities laws. The Company will transfer such shares only
                  upon receipt of evidence satisfactory to the Company, which
                  may include an opinion of counsel, that the registration
                  provisions of such Act have been compiled with or that such
                  registration is not required and that such transfer will not
                  violate any applicable state securities laws."

                           (o) Subscriber is aware that the Company may offer
         and sell additional shares of Common Stock in the future, thereby
         diluting Subscriber's percentage equity ownership of the Company.

                           (p) The Subscriber is familiar with Regulation M
         promulgated under the Securities Exchange Act of 1934, a copy of which
         is attached hereto as Exhibit B, and is in full compliance with the
         provisions thereof with respect to the transactions contemplated
         hereby.

                                       5
<PAGE>   6
         3. Representations and Warranties of the Company. As used in this
Section 4, the following capitalized terms shall have the meanings set forth
below:

                  "Contract" means any agreement, indenture, lease, sublease,
license, sublicense, promissory note, evidence of indebtedness, insurance
policy, annuity, mortgage, restriction, commitment, obligation or other
contract, agreement or instrument (whether written or oral).

                  "GAAP" means generally accepted accounting principles in
effect in the United States of America from time to time.

                  "Material Adverse Change" or "Material Adverse Effect" means,
with respect to any Person, any change or effect that is or is reasonably likely
to be materially adverse to the financial condition, business, prospects or
results of operations of such Person.

                  "Person(s)" means any individual, sole proprietorship,
partnership, joint venture, trust, limited liability company, incorporated
organization, association, corporation, institution, public benefit corporation,
entity or government (whether Federal, state, county, city, municipal or
otherwise, including, without limitation, any instrumentality, division, agency,
body or department thereof).

                  Subscriber is subscribing for the Shares based upon the
following representations and warranties of the Company, which the Company
hereby confirms by accepting this subscription:

                           (a) Organization. The Company is a corporation duly
         organized, validly existing and in good standing under the laws of the
         State of New Jersey and has the corporate power to own and/or lease its
         properties and to conduct its business in the places where such
         properties are now owned, leased or operated or such business is
         presently conducted. The Company is duly qualified and licensed as a
         foreign corporation in additional jurisdictions in which it owns or
         leases real property or in which its operations or activities would
         otherwise require such qualification.

                           (b) Authorization. The execution, delivery and
         performance of this Agreement by the Company has been duly and validly
         authorized and approved by its Board of Directors, and this Agreement,
         when executed by a duly authorized officer of this Company, will be a
         valid and binding agreement of the Company, enforceable in accordance
         with its terms, except as such enforceability may be limited by (i)
         bankruptcy, insolvency, reorganization or other similar laws and legal
         and equitable principles limiting or affecting the rights of creditors
         generally and/or (ii) general principles of equity, regardless of
         whether considered in a proceeding in equity or at law, and except as
         rights to indemnification hereunder may be limited by Federal or state
         securities laws.

                           (c) Capitalization. The authorized capital stock of
         the Company consists of 40,000,000 shares of Common Stock, no par value
         per share and 1,000,000 shares of Preferred Stock of which 167,000
         shares have been designated as Series A Redeemable Preferred Stock, par
         value $4.50 ("Series A Preferred Stock") and 93,300

                                       6
<PAGE>   7
         shares have been designated as Series B Redeemable Preferred Stock, par
         value $5.00 ("Series B Preferred Stock"). All issued and outstanding
         shares of capital stock of the Company have been, and as of the Closing
         Date will be, duly authorized and validly issued and are fully paid and
         non-assessable. As of September 10, 1999, 8,213,805 shares of Common
         Stock, 67,600 shares of Series A Preferred Stock and 86,041 shares of
         Series B Preferred Stock are issued and outstanding. Since September
         10, 1999, any changes in the Company's capitalization are the result of
         the issuance of a de minimis number of shares of Common Stock upon the
         exercise of certain options. The Company has a Stock Option Plan,
         pursuant to which the Company may issue options to acquire up to an
         aggregate of 2,160,000 shares of Common Stock to its directors,
         officers, consultants and employees. As of September 10, 1999, options
         for 1,078,931 shares of Common Stock were exercisable under this plan
         and warrants for 1,122,130 shares of Common Stock were outstanding.

                           (d) No Violations; Defaults. The execution and
         delivery of this Agreement and the consummation of the transactions
         contemplated by this Agreement will not (i) violate, result (with the
         lapse of time or giving of notice, or both) in a violation of, conflict
         with, or constitute a default under, or permit the termination or
         acceleration of the maturity of, any material indebtedness or material
         obligation of the Company; (ii) violate, result (with the lapse of time
         or giving of notice, or both) in a violation of, conflict with or
         constitute a default under, any material term of, or permit the
         termination of, any material note, mortgage, indenture, license,
         agreement, contract, arrangement, understanding or other instrument to
         which the Company is a party, or by which it is bound, or the Articles
         of Incorporation or By-Laws of the Company; (iii) except as
         contemplated by this Agreement or where the absence would not have a
         material adverse effect on the Company or its subsidiaries, taken as a
         whole, require consent, approval, waiver or authorization from or
         registration or filing with any party, including but not limited to any
         party to any material agreement to which the Company is a party or by
         which it is bound or by any regulatory or governmental agency, body or
         entity (except as obtained prior to the Closing); or (iv) violate any
         statute, law, rule, regulation or ordinance, or any judgment, decree,
         order, regulation or rule of any court, tribunal, administrative or
         governmental agency, body or entity to which the Company or its
         properties are subject.

                           (e) Validity of Securities. The Shares, when issued
         in accordance with the terms and conditions hereof, will be duly
         authorized, validly issued, fully paid and non-assessable, and the
         delivery to Subscriber of the Shares delivered pursuant to this
         Agreement shall vest in it good and marketable title thereto, free of
         any and all liens, options, encumbrances, charges, third-party rights
         or claims of any nature whatsoever except for restrictions on transfers
         set forth herein or imposed by law.

                           (f) Disclosure. The Company is aware of no facts
         which lead it to believe that the Documents contain any untrue
         statement of a material fact or omits to state a material fact
         necessary to make the statements therein, in the light of the
         circumstances under which they were made, not misleading.

                           (g) Material Changes. Except as set forth in the
         Documents, or as otherwise contemplated herein, since June 30, 1999,
         there has been no Material Adverse

                                       7
<PAGE>   8
         Change in the Company, and there has not been (i) any direct or
         indirect redemption, purchase or other acquisition by the Company of
         any shares of the Common Stock or (ii) declaration, setting aside or
         payment of any dividend or other distribution by the Company with
         respect of the Common Stock.

                           (h) No Commissions. In connection with the purchase
         of the Shares hereunder, the Company has agreed to pay the Placement
         Agent a placement fee (including cash and a warrant) and certain
         expenses relating to the transactions contemplated hereunder. Except
         for such placement fee and expenses, the Company has not incurred any
         other obligation for any finder's or broker's or agent's fees or
         commissions in connection with the sale of the Shares.

                           (i) Consents/Approvals. No consent, approval, waiver
         or other action by any Person under any Contract to which the Company
         is a party, or by which any of its properties or assets are bound, is
         required or necessary for the execution, delivery or performance by the
         Company of this Agreement and the consummation of the transactions
         contemplated hereby, except where the failure to obtain such consents,
         filings, authorizations, approvals or waivers or make such filings
         would not have a Material Adverse Effect on the Company.

                           (j) SEC Reports and Nasdaq Compliance. Since December
         19, 1997, the Company has made, in a timely fashion, all filings (the
         "SEC Reports") required to be made by it under the Exchange Act. The
         SEC Reports, when filed, complied in all material respects with all
         applicable requirements of the Securities Act and the Exchange Act and
         the securities laws, rules and regulations of any state and pursuant to
         any requirements of law. The SEC Reports, when filed, did not contain
         an untrue statement of a material fact or omit to state a material fact
         required to be stated therein or necessary in order to make the
         statements made therein, in light of the circumstances under which they
         were made, not misleading. The Company will use its best efforts to
         ensure its continued inclusion in, and the continued eligibility of the
         Common Stock for trading on, the Nasdaq National Market under all
         currently effective and currently proposed inclusion requirements prior
         to and after the Closing.

                           (k) Financial Statements. Each of the balance sheets
         included in the Documents (including any related notes and schedules)
         fairly presents in all material respects the financial position of the
         Company as of its date, and each of the other financial statements
         included in the Documents (including any related notes and schedules)
         fairly presents in all material respects the results of operations or
         other information therein of the Company for the periods or as of the
         dates therein set forth in accordance with GAAP consistently applied
         during the periods involved (except that the interim reports are
         subject to normal recording adjustments which might be required as a
         result of year-end audit and except as otherwise stated therein).

                  The Company represents that the foregoing representations and
warranties are true and correct as of the date hereof and, unless the Company
otherwise notifies Subscriber prior to the Closing Date, shall be true and
correct as of the Closing Date. The foregoing representations and

                                       8
<PAGE>   9
warranties shall survive the Closing Date.

         4. Registration Rights.

                  4.1 Registration of Shares. As soon as practicable, but in any
event no later than ten business days after the Closing Date, the Company will
file a registration statement (the "Registration Statement") under the
Securities Act of 1933, as amended, with respect to all of the Shares
(collectively, the "Subject Stock"), and the Company shall use its best efforts
to cause such Registration Statement to become effective as soon as practicable
after filing. In connection therewith, each holder of Shares (each, a "Holder")
will provide in a timely manner all such information and materials pertaining to
it as may be required in order to permit the Company to comply with all
applicable requirements of the Commission and to obtain the acceleration of the
effective date of the Registration Statement. In connection with such
registration, the Company shall:

                           (a) keep the Registration Statement effective until
         the earliest of (i) when each Holder has sold its Subject Stock, (ii)
         two years following the effective date of the Registration Statement,
         or (iii) the date all of the Shares may be sold under Rule 144 under
         the Securities Act of 1933 without volume limitations;

                           (b) as expeditiously as possible furnish to each
         Holder such reasonable numbers of copies of the prospectus as such
         Holder may reasonably request in order to facilitate the public sale or
         other disposition of the Subject Stock;

                           (c) as expeditiously as possible use its best efforts
         to register or qualify the Subject Stock under the securities or Blue
         Sky laws of such states as Subscriber shall reasonably request,
         provided, however, that the Company shall not be required in connection
         with this paragraph (c) to qualify as a foreign corporation or execute
         a general consent to service of process in any jurisdiction;

                           (d) pay all costs and expenses incident to
         registration hereunder, except as set forth in Section 4.2.

                  4.2 Holder's Fees. Each Holder shall pay any and all
underwriters' discounts, brokerage fees and transfer taxes incident to the sale
of the Subject Stock sold by such Holder pursuant to this Section and the fees
and expenses of its counsel.

         5. Indemnification.

                  5.1 Indemnification Generally. The Company shall indemnify
Subscriber from and against any and all losses, damages, liabilities, claims,
charges, actions, proceedings, demands, judgments, settlement costs and expenses
of any nature whatsoever (including, without limitation, attorneys' fees and
expenses) or deficiencies resulting from any breach of a representation,
warranty or covenant by the Company and all claims, charges, actions or
proceedings incident to or arising out of the foregoing.

                                       9
<PAGE>   10
                  5.2 Indemnification Relating to Registration Rights.

                           (a) With respect to any registration, qualification
         or compliance effected or to be effected pursuant to Section 4 of this
         Agreement, the Company shall indemnify each Holder of the Shares whose
         securities are included or are to be included therein, each of such
         Holder's directors and officers, each underwriter (as defined in the
         Securities Act) of the securities sold by such Holder (if any), and
         each Person who controls (within the meaning of the Securities Act) any
         such Holder or underwriter (a "Controlling Person") from and against
         all losses, damages, liabilities, claims, charges, actions,
         proceedings, demands, judgments, settlement costs and expenses of any
         nature whatsoever (including, without limitation, attorneys' fees and
         expenses) or deficiencies of any such Holder or any such underwriter or
         Controlling Person concerning:

                                     (i) any untrue statement (or alleged untrue
                  statement) of a material fact contained in any prospectus,
                  offering circular or other document (including any related
                  registration statement, notification or the like) incident to
                  any such registration, qualification or compliance;

                                    (ii) any omission (or alleged omission) to
                  state therein a material fact required to be stated therein or
                  necessary to make a statement therein, in the light of the
                  circumstances under which it was made, not misleading; or

                                   (iii) any violation by the Company of the
                  Securities Act or any rule or regulation promulgated
                  thereunder applicable to the Company, or of any Blue Sky or
                  other state securities laws or any rule or regulation
                  promulgated thereunder applicable to the Company,

in each case, relating to any action or inaction required of the Company in
connection with any such registration, qualification or compliance, and subject
to Section 5.3 below will reimburse each such Person entitled to indemnity under
this Section for all legal and other expenses reasonably incurred in connection
with investigating or defending any such loss, damage, liability, claim, charge,
action, proceeding, demand, judgment, settlement or deficiency; provided,
however, that the foregoing indemnity and reimbursement obligation shall not be
applicable to the extent that any such matter arises out of or is based on any
untrue statement or omission made in reliance upon and in conformity with
written information furnished to the Company by or on behalf of such Holder or
by or on behalf of such an underwriter specifically for use in such prospectus,
offering circular or other document.

                           (b) With respect to any registration, qualification
         or compliance effected or to be effected pursuant to Section 4 of this
         Agreement, each Holder of the Shares whose securities are included or
         are to be included therein, shall indemnify the Company and each of the
         Company's directors, officers and Controlling Persons from and against
         all losses, damages, liabilities, claims, charges, actions,
         proceedings, demands, judgments, settlement costs and expenses of any
         nature whatsoever (including, without limitation, attorneys' fees and
         expenses) or deficiencies of the Company concerning:

                                       10
<PAGE>   11
                                     (i) any untrue statement of a material fact
                  contained in any prospectus, offering circular or other
                  document (including any related registration statement,
                  notification or the like) incident to any such registration,
                  qualification or compliance made in reliance upon and in
                  conformity with written information furnished to the Company
                  by or on behalf of such Holder specifically for use in such
                  prospectus, offering circular or other document;

                                    (ii) any omission to state therein a
                  material fact required to be stated therein or necessary to
                  make the statement therein, in the light of the circumstances
                  under which it was made, not misleading which was occasion by
                  reliance upon and in conformity with written information
                  furnished to the Company by or on behalf of such Holder
                  specifically for use in such prospectus, offering circular or
                  other document; or

                                   (iii) any violation by such Holder of the
                  Securities Act or any rule or regulation promulgated
                  thereunder applicable to the Company or such Holder or of any
                  Blue Sky or other state securities laws or any rule or
                  regulation promulgated thereunder applicable to such Holder,

in each case, relating to any action or inaction required of such Holder in
connection with any such registration, qualification or compliance, and subject
to Section 5.3 below will reimburse the Company for all legal and other expenses
reasonably incurred in connection with investigating or defending any such loss,
damage, liability, claim, charge, action, proceeding, demand, judgment,
settlement or deficiency; provided, however, that, the obligation of the Holder
hereunder shall be limited to an amount equal to the proceeds to the Holder of
the Shares sold as contemplated hereunder.

                  5.3 Indemnification Procedures. Each Person entitled to
indemnification under this Section (an "Indemnified Party") shall give notice as
promptly as reasonably practicable to each party required to provide
indemnification under this Section (an "Indemnifying Party") of any action
commenced against or by it in respect of which indemnity may be sought
hereunder, but failure to so notify an Indemnifying Party shall not relieve such
Indemnifying Party from any liability that it may have otherwise than on account
of this indemnity agreement so long as such failure shall not have materially
prejudiced the position of the Indemnifying Party. Upon such notification, the
Indemnifying Party shall assume the defense of such action if it is a claim
brought by a third party, and after such assumption the Indemnified Party shall
not be entitled to reimbursement of any expenses incurred by it in connection
with such action except as described below. In any such action, any Indemnified
Party shall have the right to retain its own counsel, but the fees and expenses
of such counsel shall be at the expense of such Indemnified Party unless (i) the
Indemnifying Party and the Indemnified Party shall have mutually agreed to the
contrary, (ii) the Indemnifying Party shall have failed to assume the defense of
such action or proceeding and employ counsel satisfactory to such Indemnified
Party in any such action or proceeding or (iii) the named parties in any such
action (including any impleaded parties) include both the Indemnifying Party and
the Indemnified Party and representation of both parties by the same counsel
would be inappropriate due to actual or potential differing or conflicting
interests between them. The Indemnifying Party shall not be liable for any
settlement of any proceeding effected without its

                                       11
<PAGE>   12
written consent (which shall not be unreasonably withheld or delayed by such
Indemnifying Party), but if settled with such consent or if there be final
judgment for the plaintiff, the Indemnifying Party shall indemnify the
Indemnified Party from and against any loss, damage or liability by reason of
such settlement or judgment.

         6. Miscellaneous.

                  6.1 Neither this Agreement nor any provisions hereof shall be
modified, discharged or terminated except by an instrument in writing signed by
the party against whom any such waiver, change, discharge or termination is
sought to be enforced.

                  6.2 Any notice, demand or other communication which any party
hereby may be required or may elect, to give to anyone interested hereunder
shall be sufficiently given if (a) deposited, postage prepaid, in a United
States mail letter box, registered or certified mail, return receipt requested,
addressed to such address as may be given herein three business days after such
deposit, or (b) delivered personally at such address. The Company's address for
notices is set forth on the first page hereof, and the Subscriber's address for
notices is set forth on the signature page.

                  6.3 This Agreement may be executed through the use of separate
signature pages or in any number of counterparts, and each of such counterparts
shall, for all purposes, constitute one agreement binding on all the parties,
notwithstanding that all parties are not signatories to the same counterpart.

                  6.4 Except as otherwise provided herein, the agreement shall
be binding upon and inure to the benefit of the parties and their successors,
legal representatives and assigns.

                  6.5 This Agreement (including the Exhibits attached hereto)
contains the entire agreement of the parties, and there are no representations,
covenants or other agreements except as stated or referred to herein.

                  6.6 This Agreement is not transferable or assignable by
Subscriber except as may be provided herein.

                  6.7 This Agreement shall be governed by and construed in
accordance with the law of the State of New York applicable to agreements made
and to be performed in that State.

                                       12
<PAGE>   13
         IN WITNESS WHEREOF, the parties hereto have caused this Subscription
Agreement to be duly executed and delivered as of the date set forth below.

NAME OF SUBSCRIBER:                          ADDRESS FOR NOTICES (Please Print):

___________________________________          ___________________________________

                                             ___________________________________

SIGNATURE:                                   ___________________________________
                                             Attention:_________________________
By:________________________________          Telecopy:__________________________
   Name:
   Title:                                    Tax Identification #:______________

Exact Name to appear on Stock Certificate:   ___________________________________

Number of Shares Subscribed For:             ___________________________________

Aggregate Purchase Price (see Section 1.1):  $______________________

The Investor hereby provides the following additional information:

         (a) Excluding the shares of Common Stock subscribed for above, set
forth below is the number of shares of Common Stock and options rights or
warrants of Princeton Video Image, Inc. ("Options" and together with the Common
Stock, "Securities") which Subscriber beneficially owns or of which Subscriber
is the record owner on the date hereof. Please refer to the definition of
beneficial ownership on Exhibit B attached hereto. If none, please so state.

Number of Shares:   ________________ (excluding the Shares subscribed for above)

Number of Options:  ________________

Number of Warrants: ________________

Please indicate by an asterisk (*) above if Subscriber disclaims "beneficial
ownership" of any of the above listed Securities, and indicate in response to
question (b) below who has beneficial ownership.

         (b) If Subscriber disclaims "beneficial ownership" in question (a),
please furnish the following information with respect to the person(s) other
than Subscriber who is the beneficial owner(s) of the Securities in question. If
not applicable, please check box: ?

                  Name of Beneficial Owner:____________________________________
                  Relationship to Subscriber:__________________________________
<PAGE>   14
                  Number of Securities Beneficially Owned:_____________________

                                            NAME OF SUBSCRIBER:________________

         (c) Are any of the Securities listed in response to question (a) the
subject of a voting agreement, contract or other arrangement whereby others have
voting control over, or any other interest in, any of Subscriber's Securities?

                                                             [ ] Yes      [ ] No

If the answer is "Yes", please give details:__________________________________.

         (d) Please describe each position, office or other material
relationship which the Investor has had with the Company or any of its
affiliates, including any Subsidiary of the Company, within the past three
years. Please include a description of any loans or other indebtedness, and any
contracts or other arrangements or transactions involving a material amount,
payable by Subscriber to the Company or any of its affiliates, including its
Subsidiaries, or by the Company or any of its affiliates, including its
Subsidiaries, to Subscriber. "Affiliates" of the Company include its directors
and executive officers, and any other person controlling or controlled by the
Company. IF NONE, PLEASE SO STATE.

Answer:

         (e) Please provide the name and address of other person(s), if any, to
whom any proxy statements, registration statements (including notice of
effectiveness thereof), prospectuses or similar documents and information should
be delivered by the Company on behalf of Subscriber in the future, with respect
to Subscriber's shares:

         ____________________________             _____________________________
         ____________________________             _____________________________
         ____________________________             _____________________________
         ____________________________             _____________________________

         (f) Please advise of special stock certificate delivery requirements
for closing, if any:

         (g) Please advise if a NASD member has placed with you the Shares being
purchased hereunder: (Name of Member:) _________________________________________

================================================================================

ACCEPTED: PRINCETON VIDEO IMAGE, INC.

          By:_______________________________
             Name: Brown F Williams
             Title: Chairman of the Board
<PAGE>   15
                                                                       EXHIBIT A

                                  RISK FACTORS

         Investment in the Company's common stock involves substantial risks,
including those described below. You should purchase our common stock only if
you can afford to lose your entire investment. You should carefully consider all
of the information included in the Documents to evaluate us and our business.
You should make this evaluation before deciding whether to purchase our common
stock. You should understand that additional risks which we cannot predict at
this time may have negative impact on us in the future. You should also
understand that the risks discussed below might affect us more than or in a
different manner than we now predict.

         Some of the information in the Documents and this Exhibit A may contain
forward-looking statements. These statements can be identified by the use of
forward-looking words such as "may," "will," "expect," "anticipate," "estimate,"
"continue" or other similar words. These statements discuss future expectations
and projections of results of operations or of financial conditions. When
considering these forward-looking statements, you should keep in mind the risk
factors described below and other cautionary statements made in the Documents.
These statements identify some of the factors that may cause actual results to
differ from any projections contained in forward-looking statements. Important
factors that may cause actual results to differ from projections include, for
example:

         -        adverse economic conditions;

         -        intense competition, including entry of new competitors and
                  products;

         -        adverse federal, state, local and foreign government
                  regulation;

         -        inadequate capital to operate our business;

         -        unexpected costs and operating deficits;

         -        lower revenues than forecast;

         -        inability to successfully market the L-VIS(TM) System to
                  television viewers, advertisers, broadcasters and sporting
                  events rights holders;

         -        inability of third party sales forces to sell L-VIS System
                  advertising;

         -        contractual restrictions on use of video insertion technology;

         -        risks associated with doing business in international markets;

         -        seasonal fluctuations based upon the game schedules of each
                  sport;

         -        manufacturing inexperience;

         -        challenges to our patent and proprietary technology;

         -        technological obsolescence of the L-VIS System;

         -        inability to upgrade and develop software for use of the L-VIS
                  System with new sports and other new uses;

         -        dependence on a sole source of supply for some hardware
                  components;

         -        the possible fluctuation and volatility of our operating
                  results and financial condition;

         -        adverse publicity and news coverage;

         -        loss of key employees, and

         -        other specific risks shown in the Documents and this
                  Exhibit A.
<PAGE>   16
We do not promise to update forward-looking information or any other information
to reflect actual results or changes in assumptions or other factors that could
affect those statements.

WE MAY NOT GENERATE ENOUGH MONEY TO SUPPORT OUR BUSINESS OPERATIONS.

          Our operations relate to the development, introduction and marketing
of the L-VIS System. The Company has built 37 L-VIS System units, of which
approximately 25 units are in use or available for use by customers, potential
customers or foreign marketing partners. We are now trying to convince
advertisers, broadcasters and broadcast rights holders of the value of the L-VIS
System. We are also trying to enter into contracts to generate enough revenue to
meet our operating expenses. If we do not generate enough revenue, we will have
to either raise additional money or substantially reduce the scale of our
operations. We may not be able to raise additional money. We also may not
succeed in reaching our business objectives. Our failure to do so would have a
material adverse effect on our business, financial condition and the results of
our operations.

WE HAVE A HISTORY OF OPERATING LOSSES AND EXPECT TO INCUR ADDITIONAL LOSSES.

         We have not made a profit in any period of operations since we began
our business. We expect to lose money at least through calendar year 1999 due to
the costs required to manufacture, market and enhance the L-VIS System. We
incurred net losses of $5,730,661 for the fiscal year ended June 30, 1997,
$9,128,374 for the fiscal year ended June 30, 1998, and $9,698,048 for the
fiscal year ended June 30, 1999. We have earned only $1,222,213 during fiscal
year ended June 30, 1999 through receipts from advertising use of the L-VIS
System, contractual arrangements made with customers and license and royalty
fees from the use of the L-VIS System.

         We may never earn a profit. Further, we may not be able to continue our
operations. Our limited operating history makes the prediction of future
operating results difficult or impossible. You should consider our prospects in
light of the risks, expenses and difficulties frequently encountered by early
stage companies, particularly companies in new or rapidly evolving markets.

WE MAY NOT BE ABLE TO SUCCESSFULLY MARKET THE L-VIS SYSTEM WHICH WILL ADVERSELY
AFFECT OUR ABILITY TO RAISE REVENUES.

         We expect to derive almost all of our revenues from the operation of
the L-VIS System. We intend to spend additional money to hire more sales and
marketing personnel and on making the product more market friendly. Any benefits
from the expansion may take one year or longer. We will lose more money if sales
do not increase in proportion to the increase in expenses. Our expansion will
depend on, among other things, our ability to identify markets, to manage
growth, and to hire and retain skilled personnel. Our failure to successfully
market the L-VIS System would have a material adverse effect on our business,
financial condition and the results of our operations. Our ability to market
successfully the L-VIS System will depend upon its acceptance by at least four
groups: television viewers, advertisers, broadcasters and broadcast rights
holders. To date, only a few broadcasters, broadcast rights holders and
advertisers have agreed to use the
<PAGE>   17
L-VIS System. No data exists about television viewers' reactions to the L-VIS
System. However, some press coverage of our technology has raised concerns about
its desirability and potential misuse. For instance, one article described
inserted advertising images as subliminal advertising. The technology has also
been described as allowing unethical tampering with a television picture. Others
have complained that television viewers will see too many advertisements. We may
not be able to combat successfully any negative publicity about inserted
advertising. We may not be able to maintain or increase our commercial
arrangements. The failure of any one or more of the four groups to accept the
L-VIS System may prevent us from successfully marketing the L-VIS System. That
result could cause the holders of our common stock to lose their entire
investment.

WE MAY NOT BE ABLE TO PROTECT OUR PROPRIETARY RIGHTS AND THERE CAN BE NO
ASSURANCE THAT THESE RIGHTS ARE SUFFICIENT TO PROTECT OUR TECHNOLOGY;
INFRINGEMENT ACTIONS.

         We must maintain the proprietary nature of our technology to compete
effectively. We have been assigned five issued United States patents and three
allowed European patents. We have licensed several other patented technologies
from third parties and we have filed applications for a number of patents in the
United States and abroad. However, the degree of protection offered by these
patents is not certain and the pending patents may not be issued. Any patents
issued to us or our licensors in a foreign country may provide less protection
than provided in the United States. Competitors may obtain patents that
interfere with our ability to make L-VIS System units and to market the L-VIS
System. Competitors may intentionally infringe our patents. Competitors or
strategic partners may copy or independently develop technologies that are the
same or similar to our technologies.

         Our patents may be challenged in court proceedings. There has been no
court test of our patents or patent applications. We are aware of other
companies that have patents or patent applications relating to video insertion
technology. Other companies may claim that we infringe their patents or rights.
These companies may infringe our patents. In June 1999, we sued Scidel USA, Ltd.
for patent infringement. Scidel has responded by denying ours claims and
alleging that the our patents are invalid. In September 1999, we filed a request
with the United States Patent and Trademark Office to correct the ownership of
US Patent 5,917,553, licensed to Sportvision, Inc. On October 5, 1999, we were
advised that Sportvision had sued us for infringement of the same patent. While,
as of the date of preparation of the Agreement, we have not received or reviewed
the lawsuit, we believe that Sportvision has no legitimate claim.

         Patent litigation involves complex legal and factual issues. The
outcome of such actions are highly uncertain. In addition, patent litigation
involves considerable costs. We cannot assure you that we do not or will not
infringe the patent or intellectual property rights of another company. If we
lose a patent infringement action, we may be required to pay a significant
amount of money or to stop selling our products. We may also need to license
disputed technology from another company, if possible. If our patents are
successfully challenged, our business, financial condition and the results of
our operations will be adversely affected.

         We also rely on unpatented trade secrets, improvements and proprietary
technology. Others may copy or independently develop similar technology or gain
access to our technology. We require our employees and some third parties to
enter into confidentiality agreements. We
<PAGE>   18
also use copyright, trademark and trade secret protection. These steps may not
protect our trade secrets, know-how or other proprietary information.

WE MAY NOT BE ABLE TO RETAIN OUR KEY PERSONNEL OR HIRE ADDITIONAL PERSONNEL.

         We depend on a number of key technical and management employees,
including:

         -        Brown F Williams, our Co-Founder and Chairman of the Board;

         -        Dennis P. Wilkinson, our President and Chief Executive
                  Officer;

         -        Samuel A. McCleery, our Vice President, Business Development;

         -        Lawrence L. Epstein, our Vice President of Finance, Chief
                  Financial Officer and Treasurer; and

         -        Paul Slagle, our Vice President of Sales and Marketing

         If one or more of these individuals leaves us, our ability to conduct
operations may be materially and negatively affected. Our success depends on our
ability to attract and retain qualified financial, technical, marketing and
other management personnel. We face competition for this personnel. We have
employment agreements with Messrs. Williams, Wilkinson, McCleery, Epstein and
Slagle. We have obtained key man life insurance on the life of Mr. Williams for
$2 million and on the life of Mr. McCleery for $1 million. Although our
employees sign confidentiality and non-competition agreements, our key personnel
might leave us and work for a competitor. We also rely on consultants to assist
us in research and development strategy. Our consultants are employed by third
parties and may have commitments to others that may limit their availability.

OUR DEPENDENCE ON THIRD PARTY SALES FORCES MAY ADVERSELY AFFECT ADVERTISING
REVENUES.

         Under many of our contracts, the broadcast rights holders market and
sell the L-VIS System advertising. We typically receive a percentage of the
advertising revenues earned by the broadcast rights holders. The broadcast
rights holders may not be successful in selling L-VIS System advertising. If the
broadcast rights holders are unable to enter into arrangements with a
substantial number of advertisers, their failure will have a material adverse
effect on our business, financial condition and the results of our operations.

USE OF THE L-VIS SYSTEM MAY BE RESTRICTED BY AGREEMENTS WHICH WILL AFFECT OUR
ABILITY TO EARN REVENUES.

         Agreements among advertisers, sponsors, syndicators, promoters,
broadcasters and cable operators may include provisions that restrict the use of
video insertion technology in television broadcasts. These restrictions may have
a material adverse effect on our business, financial condition and the results
of our operations. Businesses might not enter into amendments of these
agreements to help us. We believe that one manufacturer of scrolling billboards
used in stadiums has included these restrictions in its contracts.

OUR INTERNATIONAL MARKETING PLANS MAY BE ADVERSELY AFFECTED BY INTERNATIONAL
BUSINESS CONDITIONS, INCLUDING FOREIGN MARKETS AND REGULATORY REQUIREMENTS.
<PAGE>   19
         We plan to continue to market the L-VIS System outside the United
States through agreements with others. We may not succeed in creating a material
business internationally. We have granted some parties exclusive rights to
territories or specific sporting events which means that we must rely on their
success in these areas. Their failure could have a material adverse effect on
our business, financial condition and the results of our operations.

         Furthermore, there are some risks inherent in doing business in
international markets, such as:

         -        unexpected changes in regulatory requirements;

         -        tariffs and other trade barriers;

         -        difficulties in staffing and managing foreign operations;

         -        political instability;

         -        fluctuations in currency exchange rates;

         -        reduced protection for intellectual property rights;

         -        seasonal reductions in business activity during the summer
                  months; and

         -        adverse tax consequences.

Any of these or other risks inherent in doing business in international markets
could have a material adverse impact upon the success of our international
operations and thus could have a material adverse effect on our business,
financial condition and the results of our operations.

THE SEASONALITY OF SPORTS MAY CAUSE FLUCTUATIONS IN OUR REVENUES.

         If we are unsuccessful in expanding the market for use of the L-VIS
System beyond a limited number of sports, our revenues will fluctuate seasonally
based upon the game schedules associated with each of these sports.

TECHNICAL UNCERTAINTIES RELATING TO THE OPERATION OF THE L-VIS SYSTEM COULD
LIMIT ITS USE.

         The L-VIS System can only be used for some sports under limited
circumstances. We must have the cooperation of the broadcaster to obtain
acceptable results. The L-VIS System has been operated mainly by our personnel
and operators trained by us. We will have to develop additional software and
hardware and train personnel to achieve wider use. Future operational
difficulties of the L-VIS System could increase the cost of, or delay
implementation of, our business plan which, in turn, could materially adversely
affect our success.
<PAGE>   20
OUR FAILURE TO KEEP PACE WITH TECHNOLOGICAL CHANGES AND CUSTOMER PREFERENCES
WOULD HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS.

         We operate in a rapidly developing commercial and technological
environment. Our success will depend in part upon our ability to develop product
enhancements that keep pace with continuing changes in technology and customer
preferences. Our failure to develop product enhancements on a timely basis would
have a material adverse effect on our business, financial condition and the
results of our operations. The video, electronics, data processing, broadcast
television and cable television industries are changing rapidly due to, among
other things, technological improvements, consolidations of companies and
changes in consumer preferences and customs. In particular, the live video image
insertion market is new and undeveloped. We anticipate that as the market
develops, it will be affected by technological change and product improvements.
Changes in industry broadcast standards may adversely affect our competitive
position.

WE HAVE LIMITED EXPERIENCE IN MANUFACTURING THE L-VIS SYSTEM IN COMMERCIAL
QUANTITIES.

         We have limited experience in manufacturing L-VIS System units in large
quantities for commercial purposes. Our current modest manufacturing facilities
are designed to meet the current demand for use of the L-VIS System. We will
have to redesign our manufacturing facilities if we are able to develop a
substantially larger market for use of the L-VIS System. Any manufacturing
difficulties and any cost increases may materially adversely affect our profit
margin, if any, on the sale, lease or use of future L-VIS System units.
Manufacturing difficulties and cost increases may also affect our ability to
develop and deliver L-VIS System units on a timely basis. We believe that the
eventual manufacturing cost of L-VIS System units will be based upon the cost of
the components of the L-VIS System units purchased from the manufacturers of
these components and the cost of the digital signal processing circuits used to
perform identification, recognition and insertion functions which we produce. As
we increase our product development activities, we may find it desirable to
enter into contracts to have outside parties manufacture the L-VIS System units.
Any increased reliance on outside parties will require that we devote additional
resources to monitoring operations, controlling costs and maintaining effective
quality, inventory and service controls.

OUR DEPENDENCE ON A SOLE SUPPLIER OF SOME HARDWARE COMPONENTS MAY DELAY
MANUFACTURING OR REQUIRE REDESIGN OF THE L-VIS SYSTEM.

         We depend upon a single supplier, Lucent Technologies, for some
hardware components. Although these hardware components are stock items, Lucent
may decide to stop selling them. We do not have an agreement with Lucent. If we
cannot get hardware components on a timely basis or if we have to pay
substantially more for them, we will have to find other sources for similar
components. This would require a redesign of some of our systems and our
business, financial condition and the results of our operations may be
materially adversely affected.
<PAGE>   21
WE FACE INTENSE COMPETITION FROM COMPANIES INVOLVED WITH VIDEO INSERTION
TECHNOLOGY AND FROM COMPANIES INVOLVED WITH TRADITIONAL ADVERTISING.

         Competition may have a material adverse effect on our business,
financial condition and the results of our operations. The market for electronic
video insertion technology is new and evolving. We are aware of three
competitors with video technologies used for advertising: Symah Vision-SA, Orad
Hi Tech Systems, Ltd. and Scidel Technologies, Ltd. Orad is partly owned by ISL,
a Swiss sports-marketing firm. We recently expanded the services we offer to
include, for a fee, the electronic insertion of visual aids in live sporting
events, such as a virtual first-down marker in live television broadcasts of
football games. We are aware that another U.S. company, Sportvision, Inc., is
also in the business of inserting visual aids in live sporting events. If the
market for electronic video insertion technology grows, we also expect
substantial competition from established broadcast businesses. These broadcast
businesses have greater resources and more highly skilled individuals than we
do. Many potential competitors could gain significant market share due to their
greater name recognition and more extensive customer bases. These competitors
may be able to:

         -        produce a product superior to ours;

         -        undertake more extensive promotional activities than ours;

         -        offer more attractive terms to customers than we do; and

         -        adopt more aggressive pricing policies than we have.

         The L-VIS System competes with advertisers' use of traditional
30-second advertising spots. These 30-second advertising spots are the standard
in the television advertising industry. The L-VIS System also competes with
advertisers' use of conventional billboard products, including advertising
placed on playing surfaces, such as outfield walls, football fields and ice
hockey rinks and scrolling billboards. Scrolling billboards are physically
located at the site of an event and can display a series of different
advertisements during an event. Scrolling billboards can achieve an effect
similar to the L-VIS System for the television viewing audience in some
circumstances.

         We expect to generate revenue primarily by causing existing advertisers
and sponsors to use the L-VIS System and by attracting new advertisers and
sponsors to the advertising and sponsorship market. However, existing
advertisers may be reluctant to use a new technology. Advertisers may not
believe that their sales will increase as a result of the use of our technology.
The competition is likely to be more intense where we are competing for
television advertising and sponsorship dollars that are currently spent on
traditional media, such as 30-second spots or scrolling billboards. We need the
cooperation of the sponsorship advertising sales departments of team owners,
other rights holders and broadcasters. We rely on these entities for the sale of
our products to advertisers, but they may have incentives to sell alternative
advertising or sponsorship inventory rather than our services. This will have a
material adverse effect on our business, financial condition and the results of
our operations.
<PAGE>   22
DOMESTIC AND FOREIGN REGULATIONS MAY RESTRICT THE USE OF THE L-VIS SYSTEM.

         We believe that no federal or state regulations directly restrict the
use of the L-VIS System. There are existing regulations imposed on broadcasters,
which may require disclosure that the L-VIS System is being used in a particular
broadcast. There may be regulations or restrictions in the future which
adversely affect the use of the L-VIS System. These regulations or restrictions
could have a material adverse effect on our business, financial condition and
the results of our operations.

         Regulatory agencies in foreign jurisdictions may have adopted, or may
adopt in the future, regulations or restrictions affecting the use of the L-VIS
System. The adoption of these regulations or restrictions may reduce or
eliminate the market for our products in any country where these regulations or
restrictions are adopted. This would have a material adverse effect on our
business, financial condition and the results of our operations.

WE MAY NOT BE ABLE TO OBTAIN ADDITIONAL FINANCING THAT WE MAY NEED TO SUPPORT
OUR FUTURE OPERATIONS.

         In the future we may need to raise money for our operations if we do
not generate enough revenues. We may not be able to obtain additional financing
on acceptable terms, or at all. If we cannot raise money, our business,
financial condition and the results of our operations will be adversely
affected.

         We intend to use the net proceeds from this offering, our cash flow
from operations and our borrowings to support operations. Our need for money may
be affected by market changes or changes in our business. In addition, our
required payments for some electronic imaging rights total $2,000,000 for the
two fiscal years ending June 30, 2000. We may need to raise money earlier than
expected to expand, develop or enhance products, respond to competition or
acquire businesses. Our need for money will also depend on:

         -        the size of our research and development programs;

         -        the cost of our manufacturing and marketing activities;

         -        our ability to market products successfully;

         -        the length of time required to collect accounts receivable;
                  and

         -        the need to address competing technological and market
                  developments.

         If we raise money by selling stock or convertible debt securities,
shareholders could experience substantial dilution. In addition, the securities
could have greater rights, preferences and privileges than you have as a holder
of our common stock. If we cannot generate sufficient revenues or raise money,
we will be required to reduce growth to a level that can be supported by
internally generated cash flow.

THIRD PARTY AGREEMENTS MAY PROHIBIT USE OF THE L-VIS SYSTEM.

         The broadcast of a sporting event is governed by agreements among the
applicable teams, leagues, broadcasters and the sports federation, if any.
Impediments to use of the L-VIS System
<PAGE>   23
during the broadcast of the sporting events covered by any of these agreements
could have a material adverse effect on our business, financial condition and
the results of our operations. In many instances, these agreements provide that
different persons control the copyrights to the broadcasts in differing
circumstances, for instance, regular season play versus playoffs. Agreements
often govern permitted forms of advertising and modifications to the broadcast.
Use of live video insertion technology is not specifically discussed in some
existing agreements. Under these circumstances it is not clear whose permission
must be obtained to use the L-VIS System. If the L-VIS System is used without
the permission of the appropriate parties, the use of the L-VIS System can be
challenged. The defense and prosecution of copyright suits is both costly and
time-consuming. Current broadcast copyright holders might not agree to amend
current agreements on terms acceptable to us.

WE MAY BE REMOVED FROM THE NASDAQ NATIONAL MARKET IF WE FAIL TO MEET CERTAIN
MAINTENANCE CRITERIA AND THE MARKET FOR OUR COMMON STOCK COULD BE ADVERSELY
AFFECTED IF WE BECOME GOVERNED BY REGULATIONS GOVERNING LOW PRICE STOCKS.

         Our common stock is quoted on the Nasdaq National Market. The continued
listing of our common stock is conditioned upon our meeting certain asset, stock
price and other criteria. If we fail any listing criteria, our common stock may
be delisted. The effects of delisting include limited news coverage and the
limited release of the market prices of our common stock. Delisting may diminish
investors' interest in our common stock, restrict the trading market and reduce
the price for our common stock. Delisting may also restrict us from issuing
additional securities or securing additional financing.

         Companies with low price stocks are governed by additional federal and
state regulatory requirements and could lose an effective trading market for
their stock. For instance, if our common stock is delisted from the Nasdaq
National Market and the trading price of our common stock is less than $5.00 per
share, our common stock could be governed by Rule 15g-9 under the Securities
Exchange Act of 1934. This rule requires that broker-dealers satisfy special
sales practice requirements before any transaction, including suitability
determinations and receiving any purchaser's written consent. The additional
burdens imposed upon broker-dealers may discourage broker-dealers from effecting
transactions in our common stock. This would reduce the liquidity of our common
stock. If these rules become applicable to our common stock, they could have a
material adverse effect on the trading market for our common stock. In addition,
our common stock could be deemed "penny stock" under the Securities Enforcement
and Penny Stock Reform Act of 1990. If this occurs, additional disclosure will
be required if you wish to make a trade in our common stock. The disclosure
includes the delivery of a disclosure schedule explaining the nature and risks
of the penny stock market. These requirements could severely limit the liquidity
of our common stock and the ability of purchasers to sell their shares of our
common stock in the secondary market.

FUTURE SALES OF OUR COMMON STOCK IN THE PUBLIC MARKET COULD ADVERSELY AFFECT OUR
STOCK PRICE AND OUR ABILITY TO RAISE FUNDS IN NEW STOCK OFFERINGS.

         The market price of our common stock could drop as a result of sales of
a large number of shares of our common stock in the marketplace, or the
perception that the sales could occur.
<PAGE>   24
These factors could also make it more difficult for us to raise money through
future offerings of securities.

         8,213,805 shares of our common stock were outstanding on September 10,
1999. Of these shares, 4,600,000 were sold through our initial public offering
and are freely transferable under the Securities Act of 1933. An additional
415,000 shares of our common stock are issuable upon exercise of some warrants
and will be freely transferable pursuant to a registration statement on Form
S-3, filed by the Company with the SEC. which were previously registered.
777,130 shares are also issuable upon exercise of other outstanding warrants and
will be "restricted securities" as defined under Rule 144 under the Securities
Act. Finally, the 2,160,000 shares of our common stock which may be issued under
our 1993 Amended Stock Option Plan have been registered by us by filing a
registration statement on Form S-8 with the Securities and Exchange Commission.

         "Restricted securities" may be sold only under Rule 144 or under an
effective registration statement under the Securities Act or an exemption from
the registration requirement. As of September 30, 1999, almost all shares of our
outstanding common stock were eligible for resale under Rule 144, including Rule
144(k).

         We granted some demand and piggyback registration rights to the holders
of 3,583,652 shares of our common stock and to the holders of warrants
exercisable for an aggregate of 1,192,130 shares of our common stock, including
the 400,000 shares underlying the warrants held by the representatives of the
several underwriters of our initial public offering. These registration rights
require us to register under the Securities Act those shares of our common stock
and the shares of our common stock issuable upon exercise of the warrants. If
the holders, by exercising their registration rights, cause a large number of
shares to be registered and sold in the public market, the sales could have a
material adverse effect on the market price for our common stock.

THE PRICE OF OUR COMMON STOCK MAY BE HIGHLY VOLATILE.

         The market prices of equity securities of technology companies have
experienced substantial price volatility in recent years for reasons both
related and unrelated to the individual performance of specific companies.
Accordingly, the market price of our common stock may be highly volatile.
Factors such as announcements by us or our competitors concerning the following
matters may have a significant impact on the market price of our common stock
and could cause it to fluctuate substantially:

         -        products;

         -        patents and technology;

         -        governmental regulatory actions;

         -        events affecting technology companies generally; and

         -        general market conditions.
<PAGE>   25
         In addition, there are a relatively small number of shares of our
common stock trading publicly. Accordingly, stockholders may experience
difficulty selling or otherwise disposing of shares of our common stock at
favorable prices, or at all.

OUR OFFICERS, DIRECTORS AND EXISTING 5% SHAREHOLDERS HAVE SIGNIFICANT INFLUENCE
OVER OUR AFFAIRS AND MAY DELAY OR PREVENT A CHANGE IN CONTROL OF OUR COMPANY.

         As of December 31, 1998, our executive officers and directors, together
with entities affiliated with these individuals, and other holders of five
percent or more of our outstanding capital stock beneficially owned over 30% of
our common stock, assuming the exercise of all vested stock options and
warrants. Effectively, these shareholders will be able to elect a majority of
our directors, will have the voting power to approve all matters requiring
shareholder approval and will continue to have significant influence over our
affairs. This concentration of ownership could have the effect of delaying or
preventing a change in control of our company. As of December 31, 1998, Allen &
Company Incorporated was the beneficial owner of 12.1% of our common stock.
Enrique F. Senior, one of our directors, is an Executive Vice President and
Managing Director of Allen & Company Incorporated and as such may be deemed to
be the beneficial owner of 12.3% of our common stock, which includes the shares
of our common stock beneficially owned by Allen & Company Incorporated. These
factors could lead to conflicts of interest between us, on the one hand, and
Allen & Company Incorporated and/or Mr. Senior, on the other hand. In the event
any conflict of interest arises between us and Allen & Company Incorporated or
Mr. Senior in the future, we intend that the issue will be resolved by a
majority of directors who do not have a personal interest in the issue.

         We issued a total of 262,000 shares of our common stock, or 3.2% of the
shares of our common stock outstanding on December 31, 1998, to Brown F Williams
and Samuel A. McCleery as a result of the exercise of warrants in July 1997. The
total number of shares issued to these individuals was in exchange for
promissory notes. In December 1997 we lent money to Mr. Williams and Mr.
McCleery to allow them to pay the tax liabilities they each incurred as a result
of the exercise of their warrants in July 1997. They executed additional
promissory notes in December 1997 for these loans. All of these promissory notes
were outstanding as of December 31, 1998. Mr. Williams and Mr. McCleery have
significant influence over our affairs. Among other effects, this influence
could result in a delay of payment by Mr. Williams and Mr. McCleery to us.

OUR ABILITY TO UTILIZE OUR INCOME TAX LOSS CARRYFORWARDS TO OFFSET POSSIBLE
FUTURE CORPORATE INCOME WILL BE SEVERELY LIMITED BY THE INTERNAL REVENUE CODE.

         As a result of our initial public offering of our common stock in
December 1997, we underwent an additional "ownership change" within the meaning
of Section 382 of the Internal Revenue Code of 1986. Under Section 382 of the
Internal Revenue Code, upon undergoing the ownership change, our right to use
existing net operating loss carryforwards is limited during each future year to
a percentage of the fair market value of our outstanding capital stock
immediately before the ownership change. If other ownership changes have
occurred before this ownership change, we may be further limited in using the
losses. As of June 30, 1999, we had net operating loss carryforwards for federal
income tax purposes of approximately $30,311,000.
<PAGE>   26
These net operating loss carryforwards expire in the years 2006 through 2019.
The timing and manner in which we may use the net operating loss carryforwards
to offset possible future corporate income will be severely limited by Section
382 of the Internal Revenue Code.

OUR ISSUANCE OF PREFERRED STOCK AND THE NEW JERSEY SHAREHOLDER PROTECTION ACT
COULD ADVERSELY AFFECT THE VALUE OF OUR COMMON STOCK.

         Our board of directors may issue up to 1,000,000 shares of our
preferred stock in one or more series and may determine the price, rights,
preferences and privileges of those shares without any further vote or action by
our shareholders. We may issue up to 167,000 shares of our Series A Preferred
Stock and 93,300 shares of our Series B Preferred Stock. As of June 30, 1999,
67,600 shares of our Series A Preferred Stock were outstanding and 86,041 shares
of our Series B Preferred Stock were outstanding. As a holder of our common
stock, you may be negatively affected by the rights of the holders of our
preferred stock. The issuance of additional shares of our preferred stock would
provide flexibility for possible acquisitions and other corporate purposes.
However, our preferred stock can also be used to delay, defer or prevent a
change in control and, thus, entrench our existing management. We are governed
by the anti-takeover provisions of the New Jersey Shareholder Protection Act.
This act restricts certain business combinations with interested shareholders
for five years following the date the person becomes an interested shareholder,
unless the board of directors approves the business combination. These
provisions could adversely affect the value of our common stock since they delay
and deter unsolicited takeover attempts.

IF THE COMPUTER SYSTEMS WE RELY UPON ARE NOT YEAR 2000 COMPLIANT, OUR BUSINESS
COULD BE NEGATIVELY IMPACTED.

         Many currently installed computer systems and software products are
coded to accept only two digit entries in the date code field. Beginning in the
year 2000, these date code fields need to recognize four digit entries to
identify correctly dates in the 21st century. If not corrected, many computer
applications could fail or create erroneous results at the year 2000. To the
extent that all internal and external systems and services relating to our
operations, including, but not limited to, all computer hardware and software
systems, both those produced by us and those produced by others for our use, the
systems of our suppliers, significant third party vendors and broadcasters, and
our own internal information systems, databases and programs are not year 2000
compliant, our planned operations could be significantly disrupted. This could
have a material adverse effect on our business, financial condition and planned
results of operations. Further, to the extent that, while becoming year 2000
compliant, there are failures by governmental agencies causing delays in
approval of new products or sales of approved products, failures in global
banking systems and capital markets, failures by public and private utility
companies supplying services to us, or failures in identifying critical systems
within our company, these failures could have a material adverse effect on our
business, financial condition and planned results of operations.
<PAGE>   27
                                                                       EXHIBIT B

                                  Regulation M
<PAGE>   28
                                                                       EXHIBIT C

Explanation of "BENEFICIAL OWNERSHIP"

         Securities that are subject to a power to vote or dispose are deemed
beneficially owned by the person who holds such power, directly or indirectly.
This means that the same securities may be deemed beneficially owned by more
than one person, if such power is shared. In addition, the beneficial ownership
rules provide that shares which may be acquired upon exercise of an option or
warrant, or which may be acquired upon the termination of a trust, discretionary
account or similar arrangement, which can be effected within a period of 60 days
from the date of determination, are deemed to be "beneficially" owned.
Furthermore, shares that are subject to rights or powers even though such rights
or powers to acquire are not exercisable within the 60-day period may also be
deemed to be beneficially owned if the rights or powers were acquired "with the
purpose or effect of changing or influencing the control of the issuer or in
connection with or as a participant in any transaction having such purpose or
effect."

         In determining whether securities are "beneficially owned," benefits
which are substantially equivalent to those of ownership by virtue of any
contract, understanding, relationship, agreement or other arrangement should
cause the securities to be listed as "beneficially owned."

         Thus, for example, securities held for a person's benefit in the name
of others or in the name of any estate or trust in which such person may be
interested should also be listed. Securities held by a person's spouse, children
or other members of such person's family who are such person's dependents or who
live in such person's household should be listed as "beneficially owned" unless
such person does not enjoy benefits equivalent to those of ownership with
respect to such securities.

         If a person has a proprietary or beneficial interest in a controlled
corporation, partnership, personal holding company, trust or estate which owns
of record or beneficially any securities, such person should state the amount of
such securities owned by such controlled corporation, partnership, personal
holding company, trust or estate in lieu of allocating such person's proprietary
interest, and by note or otherwise, please indicate that. In any case, the name
of the controlled corporation, partnership, personal holding company, or estate
must be stated.

         In all cases the nature of the beneficial ownership should be stated.

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