<PAGE>
                                                                     EXHIBIT 4.5

                             STREAM MACHINE COMPANY

                                 2001 STOCK PLAN


         1. Purposes of the Plan. The purpose of the Plan is to attract and
retain the best available personnel. Options granted under the Plan may be
Incentive Stock Options or Nonstatutory Stock Options, as determined by the
Administrator at the time of grant.

         2. Definitions. As used herein, the following definitions shall apply:

                  (a) "Administrator" means the Board or any of its Committees
as shall be administering the Plan, in accordance with Section 4 of the Plan.

                  (b) "Applicable Laws" means the legal requirements relating to
the administration of stock option plans under U.S. state corporate laws, U.S.
federal and state securities laws, the Code and the applicable laws of any
foreign country or jurisdiction where Options will be or are being granted under
the Plan.

                  (c) "Board" means the Board of Directors of the Company.

                  (d) "Code" means the Internal Revenue Code of 1986, as
amended.

                  (e) "Committee" means a Committee appointed by the Board in
accordance with Section 4 of the Plan.

                  (f) "Common Stock" means the common stock of the Company.

                  (g) "Company" means Stream Machine Company, a California
corporation.

                  (h) "Consultant" means any person, including an advisor,
engaged by the Company or a Parent or Subsidiary to render services and who is
compensated for such services. The term "Consultant" shall not include Directors
who are paid only a director's fee by the Company or who are not compensated by
the Company for their services as Directors.

                  (i) "Continuous Status as an Employee" means that the
employment with the Company, any Parent, or Subsidiary, is not interrupted or
terminated. Continuous Status as an Employee shall not be considered interrupted
in the case of (i) any leave of absence approved by the Company or (ii)
transfers between locations of the Company or between the Company, its Parent,
any Subsidiary, or any successor. A leave of absence approved by the Company
shall include sick leave, military leave, or any other personal leave approved
by an authorized representative of the Company. For purposes of Incentive Stock
Options, no such leave may exceed ninety days, unless reemployment upon
expiration of such leave is guaranteed by statute or contract. If reemployment
upon expiration of a leave of absence approved by the Company is not so
guaranteed, on the 181st day of such leave of absence, any Incentive Stock
Option held by



<PAGE>
the Optionee shall cease to be treated as an Incentive Stock Option and shall be
treated for tax purposes as a Nonstatutory Stock Option.

                  (j) "Director" means a member of the Board.

                  (k) "Disability" means total and permanent disability as
defined in Section 22(e)(3) of the Code.

                  (l) "Employee" means any person employed by the Company.

                  (m) "Exchange Act" means the Securities Exchange Act of 1934,
as amended.

                  (n) "Fair Market Value" means, as of any date, the value of a
Share determined as follows:

                           (i) If the Common Stock is listed on any established
stock exchange or a national market system, including, without limitation, the
NASDAQ National Market or The NASDAQ SmallCap Market of The NASDAQ Stock Market,
the Fair Market Value of a Share shall be the closing sales price for such stock
(or the closing bid, if no sales were reported) as quoted on such exchange or
system for the last market trading day prior to the time of determination, as
reported in The Wall Street Journal or such other source as the Administrator
deems reliable;

                           (ii) If the Common Stock is regularly quoted by a
recognized securities dealer but selling prices are not reported, the Fair
Market Value of a Share shall be the mean between the high bid and low asked
prices for the Common Stock on the last market trading day prior to the day of
determination, as reported in The Wall Street Journal or such other source as
the Administrator deems reliable;

                           (iii) In the absence of an established market for the
Common Stock, the Fair Market Value of a Share shall be determined in good faith
by the Administrator.

                  (o) "Incentive Stock Option" means an Option intended to
qualify as an incentive stock option within the meaning of Section 422 of the
Code and the regulations promulgated thereunder.

                  (p) "Nonstatutory Stock Option" means an Option not intended
to qualify as an incentive stock option within the meaning of Section 422 of the
Code and the regulations promulgated thereunder.

                  (q) "Officer" means a person who is an officer of the Company
within the meaning of Section 16 of the Exchange Act and the rules and
regulations promulgated thereunder.

                  (r) "Option" means a stock option granted pursuant to the
Plan.



                                                                             -2-
<PAGE>



                  (s) "Option Agreement" means a written agreement between the
Company and an Optionee evidencing the terms and conditions of an individual
Option grant. The Option Agreement is subject to the terms and conditions of the
Plan.

                  (t) "Optioned Stock" means the Common Stock subject to an
Option.

                  (u) "Optionee" means an Employee who holds an outstanding
Option.

                  (v) "Parent" means a "parent corporation," whether now or
hereafter existing, as defined in Section 424(e) of the Code.

                  (w) "Plan" means this 2001 Stock Option Plan.

                  (x) "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any
successor to Rule 16b-3, as in effect when discretion is being exercised with
respect to the Plan.

                  (y) "Section 16(b)" means Section 16(b) of the Exchange Act.

                  (z) "Share" means a share of Common Stock.

                  (aa) "Subsidiary" means a "subsidiary corporation," whether
now or hereafter existing, as defined in Section 424(f) of the Code.

         3. Stock Subject to the Plan. The maximum aggregate number of Shares
which may be optioned and sold under the Plan is 5,000,000 Shares. The Shares
may be authorized, but unissued, or reacquired Common Stock.

         Shares that have actually been issued under the Plan, upon exercise of
an Option, shall not be returned to the Plan and shall not become available for
future distribution under the Plan. For purposes of the preceding sentence,
voting rights shall not be considered a benefit of Share ownership.

         4. Administration of the Plan.

                  (a) Procedure. With respect to Option grants made to
Employees, the Plan shall be administered by (A) the Board or (B) a committee
appointed by the Board, which committee shall be constituted to satisfy
Applicable Laws. Once appointed, such Committee shall serve in its designated
capacity until otherwise directed by the Board. The Board may increase the size
of the Committee and appoint additional members, remove members (with or without
cause) and substitute new members, fill vacancies (however caused), and remove
all members of the Committee and thereafter directly administer the Plan, all to
the extent permitted by Applicable Laws.

                  (b) Powers of the Administrator. Subject to the provisions of
the Plan, and in the case of a Committee, subject to the specific duties
delegated by the Board to such Committee, the Administrator shall have the
authority, in its discretion:

                           (i) to approve forms of agreement for use under the
Plan;



                                                                             -3-
<PAGE>



                           (ii) to construe and interpret the terms of the Plan
and Options granted pursuant to the Plan;

                           (iii) to prescribe, amend and rescind rules and
regulations relating to the Plan;

                           (iv) to authorize any person to execute on behalf of
the Company any instrument required to effect the grant of an Option previously
granted by the Administrator; and

                           (v) to make all other determinations deemed necessary
or advisable for administering the Plan.

                  (c) Effect of Administrator's Decision. The Administrator's
decisions, determinations and interpretations shall be final and binding on all
Optionees.

         5. Eligibility. Nonstatutory Stock Options and Incentive Stock Options
may be granted only to Employees.

         6. Limitations.

                  (a) Each Option shall be designated in the Option Agreement,
attached as Exhibit A hereto, as either a Nonstatutory Stock Option or an
Incentive Stock Option. However, notwithstanding such designation, to the extent
that the aggregate Fair Market Value of the Shares, with respect to which
Incentive Stock Options are exercisable for the first time by the Optionee
during any calendar year (under all plans of the Company and any Parent or
Subsidiary) exceeds $100,000, such Options shall be treated as Nonstatutory
Stock Options.

                  (b) Neither the Plan nor any Option shall confer upon an
Optionee any right with respect to continuing the Optionee's employment with the
Company, nor shall they interfere in any way with the Optionee's right or the
Company's right to terminate such employment at any time, with or without cause.

         7. Term of Plan. Subject to stockholder approval in accordance with
Section 18, the Plan shall become effective upon its adoption by the Board. It
shall continue in effect for a term of ten (10) years unless terminated earlier
under Section 14 of the Plan.

         8. Term of Option. The term of each Option shall be stated in the
Option Agreement; provided, however, that the term shall be no more than ten
(10) years from the date of grant thereof. In the case of an ISO granted to an
Optionee who, at the time the Option is granted, owns stock representing more
than ten percent (10%) of the voting power of all classes of stock of the
Company or any Parent or Subsidiary, the term of the Option shall be five (5)
years from the date of grant or such shorter term as may be provided in the
Option Agreement.

         9. Option Exercise Price and Consideration.

                  (a) Exercise Price. The per share exercise price for the
Shares to be issued pursuant to exercise of an Option shall be the Fair Market
Value per Share on the date of grant; provided, however, that in the case of an
Option granted to an Employee who, at the time of



                                                                             -4-
<PAGE>



grant of such Option, owns stock representing more than ten percent (10%) of the
voting power of all classes of stock of the Company or any Parent or Subsidiary,
the exercise price shall be no less than 110% of the Fair Market Value per Share
on the date of grant.

                  (b) Exercise Dates. The Option may be exercised on or after
the dates indicated below, provided that the Optionee has maintained Continuous
Status as an Employee through such dates, as to that percentage of the total
shares of Optioned Stock as set forth below opposite each such date, plus any
shares of Optioned Stock as to which the Option could have been previously
exercised, but was not so exercised:

<Table>
<Caption>
         DATE                                                            VESTING
         ----                                                            -------
<S>                                                                      <C>
         On the first anniversary of the date of grant                   25% of the Optioned Stock

         Beginning with the thirteenth month and continuing              1/48 of the Optioned Stock per month
         through the forty-eighth month from the date of
         grant
</Table>


                  (c) Form of Consideration. The Administrator shall determine
the acceptable form of consideration for exercising an Option, including the
method of payment. In the case of an Incentive Stock Options, the Administrator
shall determine the acceptable form of consideration at the time of grant. Such
consideration may consist entirely of:

                           (i) cash;

                           (ii) check;

                           (iii) promissory note;

                           (iv) other Shares which (A) in the case of Shares
acquired upon exercise of an Option, have been owned by the Optionee for more
than six months on the date of surrender, and (B) have a Fair Market Value on
the date of surrender equal to the aggregate exercise price of the Shares as to
which said Option shall be exercised;

                           (v) delivery of a properly executed exercise notice
together with such other documentation as the Administrator and the broker, if
applicable, shall require to effect an exercise of the Option, and delivery to
the Company of the sale or loan proceeds required to pay the exercise price;

                           (vi) a reduction in the amount of any Company
liability to the Optionee, including any liability attributable to the
Optionee's participation in any Company-sponsored deferred compensation program
or arrangement;

                           (vii) any combination of the foregoing methods of
payment; or

                           (viii) such other consideration and method of payment
for the issuance of Shares to the extent permitted by Applicable Laws.



                                                                             -5-
<PAGE>



         10. Exercise of Option, Redemption Rights and Cash-Outs.

                  (a) Procedure for Exercise; Rights as a Shareholder. Any
Option granted hereunder shall be exercisable according to the terms of the Plan
and at such times and under such conditions as determined by the Administrator
and set forth in the Option Agreement.

                           (i) An Option may not be exercised for a fraction of
a Share.

                           (ii) An Option shall be deemed exercised when the
Company receives: (i) written notice of exercise (in accordance with the Option
Agreement) from the person entitled to exercise the Option, and (ii) full
payment for the Shares with respect to which the Option is exercised. Full
payment may consist of any consideration and method of payment authorized by the
Administrator and permitted by the Option Agreement and the Plan. Shares issued
upon exercise of an Option shall be issued in the name of the Optionee or, if
requested by the Optionee, in the name of the Optionee and his or her spouse.
Until the stock certificate evidencing such Shares is issued (as evidenced by
the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company), no right to vote or receive dividends or any
other rights as a shareholder shall exist with respect to the Optioned Stock,
notwithstanding the exercise of the Option. The Company shall issue (or cause to
be issued) such stock certificate promptly after the Option is exercised. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the stock certificate is issued, except as provided in
Section 12 of the Plan.

                           (iii) Exercising an Option in any manner shall
decrease the number of Shares thereafter available, both for purposes of the
Plan and for sale under the Option, by the number of Shares as to which the
Option is exercised.

                  (b) Termination of Employment. Upon termination of an
Optionee's Continuous Status as an Employee, other than upon the Optionee's
death or Disability, the Option shall remain exercisable for three (3) months
following the Optionee's termination. Notwithstanding the above, but subject to
Section 12(c), in the event the Company is involved in a merger as a result of
which Optionees are precluded from selling shares of the acquiring company until
the publication of financial results covering post-merger combined operations
("POOLING RESTRICTIONS"), Options held by Optionees subject to such Pooling
Restrictions (including options that are assumed or substituted pursuant to
Section 12(c)) shall remain exercisable until five (5) business days after the
expiration of such Pooling Restrictions (but not beyond the original term of the
Option) notwithstanding an earlier termination of such Optionee's Continuous
Status as an Employee. If, on the date of termination, the Optionee is not
entitled to exercise his or her entire Option, the Shares covered by the
unexercisable portion of the Option shall revert to the Plan. If, after
termination, the Optionee does not exercise his or her Option within the time
specified hereby, the Option shall terminate, and the Shares covered by such
Option shall revert to the Plan.

                  Notwithstanding the above, in the event of an Optionee's
change in status from Consultant to Employee or Employee to Consultant, the
Optionee's Continuous Status as an Employee or Consultant shall not
automatically terminate solely as a result of such change in status. In such
event, an Incentive Stock Option held by the Optionee shall cease to be treated
as



                                                                             -6-
<PAGE>



an Incentive Stock Option and shall be treated for tax purposes as a
Nonstatutory Stock Option three months and one day following such change of
status.

                   (c) Disability of Optionee. Upon termination of an Optionee's
Continuous Status as an Employee as a result of the Optionee's Disability, the
Optionee may exercise his or her Option at any time within twelve (12) months
(or such other period of time as is determined by the Administrator but in no
event less than six (6) months) from the date of termination, but only to the
extent that the Optionee is entitled to exercise it on the date of termination
(and in no event later than the expiration of the term of the Option as set
forth in the Option Agreement). If, on the date of termination, the Optionee is
not entitled to exercise his or her entire Option, the Shares covered by the
unexercisable portion of the Option shall revert to the Plan. If, after
termination, the Optionee does not exercise his or her Option within the time
specified herein, the Option shall terminate, and the Shares covered by such
Option shall revert to the Plan.

                   (d) Death of Optionee. In the event of the death of an
Optionee, the Option may be exercised at any time within twelve (12) months (or
such other period of time as is determined by the Administrator but in no event
less than six (6) months) following the date of death (but in no event later
than the expiration of the term of such Option as set forth in the Option
Agreement), by the Optionee's estate or by a person who acquired the right to
exercise the Option by bequest or inheritance, but only to the extent that the
Optionee was entitled to exercise the Option at the date of death. If, at the
time of death, the Optionee was not entitled to exercise his or her entire
Option, the Shares covered by the unexercisable portion of the Option shall
immediately revert to the Plan. If, after death, the Optionee's estate or a
person who acquired the right to exercise the Option by bequest or inheritance
does not exercise the Option within the time specified herein, the Option shall
terminate, and the Shares covered by such Option shall revert to the Plan.

                   (e) Rule 16b-3. Options granted to individuals subject to
Section 16 of the Exchange Act ("INSIDERS") must comply with the applicable
provisions of Rule 16b-3 and shall contain such additional conditions or
restrictions as may be required thereunder to qualify for the maximum exemption
from Section 16 of the Exchange Act with respect to Plan transactions.

         11. Limited Transferability of Options. Unless determined otherwise by
the Administrator, Options may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any manner other than by will or the laws of
descent and distribution, and may be exercised during the lifetime of the
Optionee, only by the Optionee. If the Administrator in its sole discretion
makes an Option transferable, such Option may only be transferred by (i) will,
(ii) the laws of descent and distribution, (iii) instrument to an inter vivos or
testamentary trust in which the Option is to be passed to beneficiaries upon the
death of the Optionee, or (iv) gift to a member of Optionee's immediate family
(as such term is defined in Rule 16a-1(e) of the Exchange Act). In addition, any
transferable Option shall contain additional terms and conditions as the
Administrator deems appropriate.

         12. Adjustments Upon Changes in Capitalization, Dissolution, Merger or
Asset Sale.

                  (a) Changes in Capitalization. Subject to any required action
by the stockholders of the Company, the number of Shares covered by each
outstanding Option, and the



                                                                             -7-
<PAGE>
number of Shares which have been authorized for issuance under the Plan but as
to which no Options have yet been granted or which have been returned to the
Plan upon cancellation or expiration of an Option, as well as the price per
Share covered by each such outstanding Option, shall be proportionately adjusted
for any increase or decrease in the number of issued Shares resulting from a
stock split, reverse stock split, stock dividend, combination or
reclassification of the Common Stock, or any other increase or decrease in the
number of issued Shares effected without receipt of consideration by the
Company; provided, however, that conversion of any convertible securities of the
Company shall not be deemed to have been "effected without receipt of
consideration." Such adjustment shall be made by the Board, whose determination
in that respect shall be final, binding and conclusive. Except as expressly
provided herein, no issuance by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of Shares subject to an Option.

                  (b) Dissolution or Liquidation. In the event of the proposed
dissolution or liquidation of the Company, the Administrator shall notify each
Optionee as soon as practicable prior to the effective date of such proposed
transaction. The Administrator in its discretion may provide for an Optionee to
have the right to exercise his or her Option until ten (10) days prior to such
transaction as to all of the Optioned Stock covered thereby, including Shares as
to which the Option would not otherwise be exercisable. To the extent it has not
been previously exercised, an Option will terminate immediately prior to the
consummation of such proposed action.

                  (c) Merger or Asset Sale. In the event of a merger of the
Company with or into another corporation, or the sale of substantially all of
the assets of the Company, the Company, at its sole discretion, will use
reasonable efforts to have each outstanding Option be assumed or an equivalent
option or right substituted by the successor corporation or a Parent or
Subsidiary of the successor corporation. In the event that the successor
corporation refuses to assume or substitute for the Option, the Option shall
terminate upon the date of the consummation of such merger or sale. For the
purposes of this paragraph, the Option shall be considered assumed if, following
the merger or sale of assets, the option or right confers the right to purchase
or receive, for each Share of Optioned Stock subject to the Option immediately
prior to the merger or sale of assets, the consideration (whether stock, cash,
or other securities or property) received in the merger or sale of assets by
holders of Common Stock for each Share held on the effective date of the
transaction (and if holders were offered a choice of consideration, the type of
consideration chosen by the holders of a majority of the outstanding Shares);
provided, however, that if such consideration received in the merger or sale of
assets was not solely common stock of the successor corporation or its Parent,
the Administrator may, with the consent of the successor corporation, provide
for the consideration to be received upon the exercise of the Option, for each
Share of Optioned Stock subject to the Option, to be solely common stock of the
successor corporation or its Parent equal in fair market value to the per share
consideration received by holders of Common Stock in the merger or sale of
assets.

         13. Date of Grant. The date of grant for all Options hereunder shall
be, for all purposes, the date on which the Administrator makes the
determination granting such Option. Notice of the determination shall be
provided to each Optionee within a reasonable time after the date of such grant.



                                                                             -8-
<PAGE>



         14. Amendment and Termination of the Plan.

                  (a) Shareholder Approval. The Company shall obtain shareholder
approval of any Plan amendment to the extent necessary and desirable to comply
with Rule 16b-3 or with Sections 162(m) or 422 of the Code (or any successor
rule or statute or other applicable law, rule or regulation, including the
requirements of any exchange or quotation system on which the Common Stock is
listed or quoted). Such shareholder approval, if required, shall be obtained in
such a manner and to such a degree as is required by the applicable law, rule or
regulation.

                  (b) Effect of Amendment or Termination. No amendment,
alteration, suspension or termination of the Plan shall materially impair the
rights of any Optionee, unless mutually agreed otherwise between the Optionee
and the Administrator, which agreement must be in writing and signed by the
Optionee and the Company.

         15. Conditions Upon Issuance of Shares.

                  (a) Legal Compliance. Shares shall not be issued pursuant to
the exercise of an Option unless the exercise of such Option and the issuance
and delivery of such Shares shall comply with all relevant provisions of law,
including, without limitation, the Securities Act of 1933, as amended, the
Exchange Act, the rules and regulations promulgated thereunder, Applicable Laws,
and the requirements of any stock exchange or quotation system upon which the
Shares may then be listed or quoted, and shall be further subject to the
approval of counsel for the Company with respect to such compliance.

                  (b) Investment Representations. As a condition to the exercise
of an Option, the Company may require the person exercising such Option to
represent and warrant at the time of any such exercise such matters as shall
entitle the Company to issue the Shares subject to such Option pursuant to an
exemption from registration thereof under the Securities Act of 1933, as
amended, including that the Shares are being purchased only for investment and
without any present intention to sell or distribute such Shares if, in the
opinion of counsel for the Company, such a representation is required.

         16. Liability of Company. The inability of the Company to obtain
authority from any regulatory body having jurisdiction, which authority is
deemed by the Company's counsel to be necessary to the lawful issuance and sale
of any Shares hereunder, shall relieve the Company of any liability in respect
of the failure to issue or sell such Shares as to which such requisite authority
shall not have been obtained.

         17. Reservation of Shares. The Company, during the term of this Plan,
will at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.

         18. Stockholder Approval. The Plan shall be approved by the
stockholders of the Company prior to the grant of any Options hereunder. Such
stockholder approval shall be obtained in the degree and manner required under
Applicable Laws.

         19. Information to Optionees. Until such time as a merger occurs
between the Company and a publicly traded company in which the options under the
Plan are assumed as set



                                                                             -9-
<PAGE>



forth in Section 12, the Company shall provide to each Optionee and to each
individual who acquires Shares pursuant to the Plan, not less frequently than
annually during the period such Optionee has one or more Options outstanding,
and, in the case of an individual who acquires Shares pursuant to the Plan,
during the period such individual owns such Shares, copies of annual financial
statements. The Company shall not be required to provide such statements to key
employees whose duties in connection with the Company assure their access to
equivalent information.



                                                                            -10-
<PAGE>



                                    EXHIBIT A

                         Insert Form of Option Agreement




<PAGE>



                             STREAM MACHINE COMPANY
                                 2001 STOCK PLAN

                             STOCK OPTION AGREEMENT


         Unless otherwise defined herein, the terms defined in the Plan shall
have the same defined meanings in the Notice of Grant and this Option Agreement.

VESTING SCHEDULE:

         This Option may be exercised, in whole or in part, in accordance with
the applicable exercise schedule set forth in the Plan.

TERMINATION PERIOD:

         This Option may be exercised for three (3) months after Optionee's
Continuous Status as an Employee terminates. Upon the death or disability of the
Optionee, this Option may be exercised for such longer period as provided in the
Plan. In no event shall this Option be exercised later than the applicable date
set forth in the Plan.

AGREEMENT

         1. Grant of Option. The Plan Administrator of the Company hereby grants
to the Optionee named in the Notice of Grant attached hereto (the "OPTIONEE"),
an option (the "OPTION") to purchase the number of Shares, as set forth in the
Notice of Grant, at the exercise price per share set forth in the Notice of
Grant (the "EXERCISE PRICE"), subject to the terms and conditions of the Plan,
which is incorporated herein by reference. Subject to Section 14(b) of the Plan,
in the event of a conflict between the terms and conditions of the Plan and the
terms and conditions of this Option Agreement, the terms and conditions of the
Plan shall prevail.

         If designated in the Notice of Grant as an Incentive Stock Option
("ISO"), this Option is intended to qualify as an ISO under Section 422 of the
Code. However, if this Option is intended to be an ISO, to the extent that it
exceeds the $100,000 rule of Code Section 422(d) it shall be treated as a
Nonstatutory Stock Option ("NSO").

         2. Exercise of Option.

                  (a) Right to Exercise. This Option is exercisable during its
term in accordance with the applicable provisions of the Plan and this Option
Agreement.

                  (b) Method of Exercise. This Option is exercisable by delivery
of an exercise notice, in the form attached as Exhibit A (the "EXERCISE
NOTICE"), which shall state the election to exercise the Option, the number of
Shares in respect of which the Option is being exercised (the "EXERCISED
SHARES"), and such other representations and agreements as may be required by
the Company pursuant to the provisions of the Plan. The Exercise Notice shall be
completed by the Optionee and delivered to the Company. Except as set forth in
the Plan, the Exercise Notice



<PAGE>
shall be accompanied by payment of the aggregate Exercise Price as to all
Exercised Shares. This Option shall be deemed to be exercised upon receipt by
the Company of such fully executed Exercise Notice accompanied by such aggregate
Exercise Price.

         No Shares shall be issued pursuant to the exercise of this Option
unless such issuance and exercise complies with Applicable Laws. Assuming such
compliance, for income tax purposes the Exercised Shares shall be considered
transferred to the Optionee on the date the Option is exercised with respect to
such Exercised Shares.

         3. Method of Payment. Payment of the aggregate Exercise Price shall be
by any of the following, or a combination thereof, at the election of the
Optionee:

                  (a) cash; or

                  (b) check; or

                  (c) consideration received by the Company under a cashless
exercise program implemented by the Company in connection with the Plan; or

                  (d) surrender of other Shares which (i) in the case of Shares
acquired upon exercise of an option, have been owned by the Optionee for more
than six (6) months on the date of surrender, and (ii) have a Fair Market Value
on the date of surrender equal to the aggregate Exercise Price of the Exercised
Shares.

The Administrator may provide for other forms of payment as provided in Section
9(c) of the Plan.

         4. Non-Transferability of Option. This Option may not be transferred in
any manner otherwise than by will or by the laws of descent or distribution and
may be exercised during the lifetime of Optionee only by the Optionee. The terms
of the Plan and this Option Agreement shall be binding upon the executors,
administrators, heirs, successors and assigns of the Optionee.

         5. Term of Option. This Option may be exercised only within the term
set out in the Plan.

         6. Tax Consequences. Some of the federal tax consequences relating to
this Option, as of the date of this Option, are set forth below. THIS SUMMARY IS
NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE.
THE OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THIS OPTION OR
DISPOSING OF THE SHARES.

                  (a) Exercising the Option.

                           (i) NSO. The Optionee may incur regular federal
income tax liability upon exercise of a NSO. The Optionee will be treated as
having received compensation income



                                       2
<PAGE>
(taxable at ordinary income tax rates) equal to the excess, if any, of the Fair
Market Value of the Exercised Shares on the date of exercise over their
aggregate Exercise Price. If the Optionee is an Employee or a former Employee,
the Company will be required to withhold from his or her compensation or collect
from Optionee and pay to the applicable taxing authorities an amount in cash
equal to a percentage of this compensation income at the time of exercise, and
may refuse to honor the exercise and refuse to deliver Shares if such
withholding amounts are not delivered at the time of exercise.

                           (ii) ISO. If this Option qualifies as an ISO, the
Optionee will have no regular federal income tax liability upon its exercise,
although the excess, if any, of the Fair Market Value of the Exercised Shares on
the date of exercise over their aggregate Exercise Price will be treated as an
adjustment to alternative minimum taxable income for federal tax purposes and
may subject the Optionee to alternative minimum tax in the year of exercise. In
the event that the Optionee changes his or her status from an Employee to a
Consultant or a Consultant to an Employee, any Incentive Stock Option of the
Optionee that remains unexercised shall cease to qualify as an ISO and will be
treated for tax purposes as an NSO on the date three (3) months and one (1) day
following such change of status.

                  (b) Disposition of Shares.

                           (i) NSO. If the Optionee holds NSO Shares for at
least one year, any gain realized on disposition of the Shares will generally be
treated as long-term capital gain for federal income tax purposes.

                           (ii) ISO. If the Optionee holds ISO Shares for at
least one year after exercise and two years after the grant date, any gain
realized on disposition of the Shares will be treated as long-term capital gain
for federal income tax purposes. If the Optionee disposes of ISO Shares within
one year after exercise or two years after the grant date, any gain realized on
such disposition will be treated as compensation income (taxable at ordinary
income rates) to the extent of the excess, if any, of the lesser of (A) the
difference between the Fair Market Value of the Shares acquired on the date of
exercise and the aggregate Exercise Price, or (B) the difference between the
sale price of such Shares and the aggregate Exercise Price. Any additional gain
will be taxed as capital gain, short-term or long-term depending on the period
that the ISO Shares were held.

                  (c) Notice of Disqualifying Disposition of ISO Shares. If the
Optionee sells or otherwise disposes of any of the Shares acquired pursuant to
an ISO on or before the later of (i) two years after the grant date, or (ii) one
year after the exercise date, the Optionee shall immediately notify the Company
in writing of such disposition. The Optionee agrees that he or she may be
subject to income tax withholding by the Company on the compensation income
recognized from such early disposition of ISO Shares by payment in cash or out
of the current earnings paid to the Optionee.

         7. [Reserved].

         8. Entire Agreement; Governing Law. The Plan is incorporated herein by
reference. The Plan and this Option Agreement constitute the entire agreement of
the parties with respect to


                                       3

<PAGE>
the subject matter hereof and supersede in their entirety all prior undertakings
and agreements of the Company and Optionee with respect to the subject matter
hereof, and may not be modified materially adverse to the Optionee's interest
except by means of a writing signed by the Company and Optionee. This agreement
is governed by the internal substantive laws, but not the choice of law rules,
of Texas.

         9. NO GUARANTEE OF CONTINUED SERVICE. OPTIONEE ACKNOWLEDGES AND AGREES
THAT THE EXERCISABILITY OF SHARES PURSUANT TO THE EXERCISE SCHEDULE HEREOF IS
EARNED ONLY BY CONTINUING AS AN EMPLOYEE AT THE WILL OF THE COMPANY (AND NOT
THROUGH THE ACT OF BEING HIRED, BEING GRANTED AN OPTION OR PURCHASING SHARES
HEREUNDER). OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE
TRANSACTIONS CONTEMPLATED HEREUNDER AND THE EXERCISE SCHEDULE SET FORTH HEREIN
DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS AN
EMPLOYEE FOR THE EXERCISE PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL NOT
INTERFERE WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO TERMINATE OPTIONEE'S
EMPLOYMENT AT ANY TIME, WITH OR WITHOUT CAUSE.



                                       4
<PAGE>



                  By your signature and the signature of the Company's
representative below, you and the Company agree that this Option is granted
under and governed by the terms and conditions of the Plan and this Option
Agreement. Optionee has reviewed the Plan and this Option Agreement in their
entirety, has had an opportunity to obtain the advice of counsel prior to
executing this Option Agreement and fully understands all provisions of the Plan
and Option Agreement. Optionee hereby agrees to accept as binding, conclusive
and final all decisions or interpretations of the Administrator upon any
questions relating to the Plan and Option Agreement. Optionee further agrees to
notify the Company upon any change in the residence address indicated below.


                                           STREAM MACHINE COMPANY



Date:                                      By:
     ---------------------------              ----------------------------------
                                           Its:
                                               ---------------------------------


                                           OPTIONEE


Date:
     ---------------------------           -------------------------------------
                                           [Name]



                                       5
<PAGE>



                                CONSENT OF SPOUSE


         The undersigned spouse of Optionee has read and hereby approves the
terms and conditions of the Plan and this Option Agreement. In consideration of
the Company's granting his or her spouse the right to purchase Shares as set
forth in the Plan and this Option Agreement, the undersigned hereby agrees to be
irrevocably bound by the terms and conditions of the Plan and this Option
Agreement and further agrees that any community property interest shall be
similarly bound. The undersigned hereby irrevocably appoints the undersigned's
spouse as attorney-in-fact for the undersigned with respect to any amendment or
exercise of rights under the Plan or this Option Agreement.



                                                 -------------------------------
                                                 Spouse of Optionee



<PAGE>



                                    EXHIBIT A

                             STREAM MACHINE COMPANY
                                 2001 STOCK PLAN

                                 EXERCISE NOTICE


Stream Machine Company

--------------------

--------------------

Attention: Shareholder Relations

         1. Exercise of Option. Effective as of today, ______________________,
200__, the undersigned ("PURCHASER") hereby elects to purchase
__________________ shares (the "SHARES") of the Common Stock of Stream Machine
Company (the "COMPANY") under and pursuant to the 2001 Stock Plan (the "PLAN")
and the Stock Option Agreement dated _____________________________ , 200__ (the
"OPTION AGREEMENT"). The purchase price for the Shares shall be ________ as
required by the Option Agreement.

         2. Delivery of Payment. Purchaser herewith delivers to the Company the
full purchase price for the Shares.

         3. Representations of Purchaser. Purchaser acknowledges that Purchaser
has received, read and understood the Plan and the Option Agreement and agrees
to abide by and be bound by their terms and conditions.

         4. Rights as Shareholder. Until the issuance (as evidenced by the
appropriate entry on the books of the Company or of a duly authorized transfer
agent of the Company) of the Shares, no right to vote or receive dividends or
any other rights as a shareholder shall exist with respect to the Optioned
Stock, notwithstanding the exercise of the Option. The Shares so acquired shall
be issued to the Optionee as soon as practicable after exercise of the Option.
No adjustment will be made for a dividend or other right for which the record
date is prior to the date of issuance, except as provided in Section 12 of the
Plan.

         5. Tax Consultation. Purchaser understands that Purchaser may suffer
adverse tax consequences as a result of Purchaser's purchase or disposition of
the Shares. Purchaser represents that Purchaser has consulted with any tax
consultants Purchaser deems advisable in connection with the purchase or
disposition of the Shares and that Purchaser is not relying on the Company for
any tax advice.

         6. Entire Agreement; Governing Law. The Plan and Option Agreement are
incorporated herein by reference. This Agreement, the Plan and the Option
Agreement constitute the entire agreement of the parties with respect to the
subject matter hereof and supersede in their entirety



<PAGE>



all prior undertakings and agreements of the Company and Purchaser with respect
to the subject matter hereof, and may not be modified materially adverse to the
Purchaser's interest except by means of a writing signed by the Company and
Purchaser. This agreement is governed by the internal substantive laws, but not
the choice of law rules, of Texas.


Submitted by:                              Accepted by:


PURCHASER:                                 STREAM MACHINE COMPANY


Signed:                                    By:
       ----------------------------           ----------------------------------
Print Name:                                Its:
           ------------------------            ---------------------------------
Date:                                      Date:
     ------------------------------             --------------------------------


Address:                                   Address:
        ---------------------------                -----------------------------

        ---------------------------                -----------------------------



Date Received



<PAGE>
NOTICE OF GRANT OF STOCK OPTIONS             STREAM MACHINE COMPANY
AND OPTION AGREEMENT                         ID:
                                                --------------------------------

                                             -----------------------------------

                                             -----------------------------------



-------------------------------------        OPTION NUMBER:
                                                           ---------------------
-------------------------------------        PLAN:         2001
                                             ID:
-------------------------------------           --------------------------------

Effective _____________, you have been granted a ____________ Stock Option to
buy __________ shares of Stream Machine Company (the "COMPANY") stock at
$_______ per share.

The total option price of the shares granted is $ _____________________.


Shares in each period will become vested and exercisable in accordance with the
applicable provisions of the Plan.

By your signature and the Company's signature below, you and the Company agree
that these options are granted under and governed by the terms and conditions of
the Company's 2001 Stock Plan and the Option Agreement, all of which are
attached and made a part of this document.

--------------------------------------------------------------------------------

Stream Machine Company                          Date:
                                                     ------------------



[Optionee]                                      Date:
                                                     ------------------