Document:

<PAGE>   1
                                                                     EXHIBIT 4-C

                        SIXTH AMENDMENT TO LOAN AGREEMENT

         THIS SIXTH AMENDMENT TO LOAN AGREEMENT (this "Sixth Amendment") is made
and entered into as of the 29th day of October, 1999, by and among SERVICE
TRANSPORT COMPANY, a Texas corporation ("Service Transport Company"), ADAMS
RESOURCES EXPLORATION CORPORATION, a Delaware corporation ("Exploration"),
BUCKLEY MINING CORPORATION, a Kentucky corporation ("Buckley Mining"), CJC
LEASING, INC., a Kentucky corporation ("CJC"), CLASSIC COAL CORPORATION, a
Delaware corporation ("Classic Coal"), ADA MINING CORPORATION, a Texas
corporation ("Ada Mining") and BAYOU CITY PIPELINES, INC., a Texas corporation
formerly known as Bayou City Barge Lines, Inc. ("Bayou City"), each with offices
and place of business at 5 Post Oak Place, 4400 Post Oak Parkway, 27th Floor,
Houston, Texas 77027 (Service Transport Company, Exploration, Buckley Mining,
CJC, Classic Coal, Ada Mining and Bayou City are hereinafter individually called
a "Borrower" and collectively called the "Borrowers"), and BANK OF AMERICA,
N.A., a national banking association (the "Lender"), successor in interest by
merger to NationsBank, N.A. ("NationsBank"), which had changed its name to Bank
of America, N.A., and which was the successor in interest by merger to
NationsBank of Texas, N.A. (the "Original Lender").

         WHEREAS, the Borrowers, Ada Crude Oil Company ("Ada Crude Oil") and Ada
Resources, Inc. ("Ada Resources"), (collectively referred to as the "Original
Borrowers") and the Original Lender entered into that certain Loan Agreement
dated October 27, 1993, which Loan Agreement was amended by that certain First
Amendment to Loan Agreement dated October 27, 1994 among the Original Borrowers
and the Original Lender, that certain Second Amendment to Loan Agreement dated
December 29, 1995 among the Original Borrowers and the Original Lender, that
certain Third Amendment to Loan Agreement dated January 27, 1997 among the
Original Borrowers and the Original Lender and that certain Fourth Amendment to
Loan Agreement dated September 30, 1997 among the Original Borrowers and the
Original Lender (as amended, the "Original Loan Agreement"); and

         WHEREAS, the Borrowers and NationsBank entered into that certain Fifth
Amendment to Loan Agreement dated February 2, 1999 (the Original Loan Agreement,
as amended by the Fifth Amendment, is referred to herein as the "Loan
Agreement"); and

         WHEREAS, due to the assignment of the assets and assumption of
liabilities of Ada Crude Oil and Ada Resources, such parties are no longer
parties under the Loan Agreement; and

         WHEREAS, the Borrowers and the Lender desire to make certain amendments
to the terms and provisions of the Loan Agreement, as set forth herein.

         NOW, THEREFORE, FOR AND IN CONSIDERATION of the mutual covenants and
agreements contained herein, the parties hereto agree as follows:

         1. Section 1.1 of the Loan Agreement is deleted in its entirety, and
the following is substituted in its place:

         1.1 Indebtedness. Upon the terms and conditions hereinafter set forth,
the Lender agrees to lend and the Borrowers agree to borrow up to an aggregate
of $17,500,000.00, as evidenced by

<PAGE>   2

         a revolving credit and term loan facility to be extended to the
         Borrowers by the Lender consisting of two tranches and more
         specifically described in Section 1.3 hereof.

         2. The definition of "Tranche B Note" in Section 1.2(a) of the Loan
Agreement is deleted in its entirety, and the following is substituted in its
place:

                    "Tranche B Note" shall mean the promissory note of the
          Borrowers in the original principal amount of $7,500,000.00, issued
          pursuant to Section 1.3 of this Agreement in the form attached as
          Exhibit "A-2" to the Sixth Amendment.

         3. There is added to Section 1.2(a) of the Loan Agreement the following
definition:

                    "ARM Entities" shall mean, collectively, Adams Resources
          Marketing, Ltd., Adams Resources Marketing G.P., Inc. and Adams
          Resources Marketing II, Inc., each of which is a Subsidiary.

         4. The first sentence of Section 1.3(a) of the Loan Agreement is
deleted in its entirety, and the following is substituted in its place:

         The Lender, during the period from the date of the Sixth Amendment
         through October 27, 2001, subject to the terms and conditions of this
         Agreement, agrees (i) to make loans to the Borrowers pursuant to a
         revolving credit and term loan facility up to but not in excess of the
         lesser of $10,000,000.00 or the amount of the Tranche A Borrowing Base
         and (ii) to make additional loans to the Borrowers pursuant to a
         revolving credit and term loan facility up to but not in excess of the
         lesser of $7,500,000.00 or the amount of the Tranche B Borrowing Base.

         5. The last sentence of Section 1.3(a) of the Loan Agreement is deleted
in its entirety, and the following is substituted in its place:

         The Borrowers' obligation to repay the Facility shall be evidenced by
         two Promissory Notes of the Borrowers in substantially the form
         attached as Exhibit "A-1" to the Loan Agreement and Exhibit "A-2" to
         the Sixth Amendment, which shall bear interest at the rate, and be
         payable at the times, set forth in subsections (b) and (c) of this
         Section 1.3.

         6. The fourth and fifth sentences of Section 1.3(b) of the Loan
Agreement are deleted in their entirety, and the following is substituted in
their place:

         Commencing October 31, 2001, a principal payment shall be made on each
         Note on the last day of each October, January, April and July in an
         amount equal to one-twelfth (1/12th) of the principal amount
         outstanding under such Note at the close of Lender's business on
         October 27, 2001. All unpaid principal and accrued and unpaid interest
         on the Notes shall be due and payable on or before October 27, 2004.

         7. Section 4.2 of the Loan Agreement is deleted in its entirety, and
the following is substituted in its place:

<PAGE>   3

                    4.2 Operating Lease Commitments: Permitted Guarantees.
          Except for Permitted Guarantees, the Borrowers will not incur or
          commit to incur, or permit the Guarantor or any Subsidiary (other than
          Gulfmark) to incur or commit to incur (a) any Operating Lease
          Commitments classified as lease obligations under generally accepted
          accounting principles if the aggregate of all such Operating Lease
          Commitments of the Borrowers, the Guarantor and the Subsidiaries other
          than Gulfmark (an a consolidated basis) equals or exceeds
          $7,000,000.00 during any fiscal year of the Borrowers, or (b) any
          Operating Lease Commitments classified as capital expenditures under
          generally accepted accounting principles if the aggregate of all such
          Operating Lease Commitments of the Borrowers, the Guarantor and the
          Subsidiaries (on a consolidated basis) equals or exceeds
          $7,000,000.00.

         8. Clauses (a), (b) and (c) of Section 4.3 of the Loan Agreement are
deleted in their entirety, and the following is substituted in their place:

         (a) the Guarantor may advance up to $500,000.00 to Gulfmark, provided
         such advances are made pursuant to the Gulfmark Note, (b) the
         Guarantor may make Investments in the ARM Entities in an aggregate
         amount of up to $4,500,000.00, (c) Investments may be made in, and
         loans in advance may be made to, the Borrowers, the Guarantor and the
         Subsidiaries (other than Gulfmark [except as permitted by clause (a)
         above], the ARM Entities [except as permitted by clause (b) above] and
         Plastics Universal) and (d) the Guarantor may make the loan permitted
         by the terms of Section 4.8 of this Agreement.

         9. Clause (b) of Section 4.4 of the Loan Agreement is deleted in its
entirety, and the following is substituted in its place;

         (b) create any additional Subsidiaries (other than the ARM Entities),

         10. The first parenthetical in Section 4.5 of the Loan Agreement, which
currently reads "(other than Gulfmark)" is deleted in its entirety, and is
replaced with a parenthetical that reads "(other than Gulfmark and the ARM
Entities)".

         11. The closing of the transactions contemplated by this Sixth
Amendment is subject to the satisfaction of the following conditions:

                    (a) All legal matters incident to the transactions herein
          contemplated shall be satisfactory to Gardere Wynne Sewell & Riggs,
          L.L.P., counsel to the Lender;

                    (b) The Lender shall have received a fully executed copy of
          this Sixth Amendment, the Tranche B Note and a Notice as to Written
          Agreement; and

                    (c) The Lender shall have received an executed copy of
          resolutions of the Board of Directors of each of the Borrowers and the
          Guarantor, in form and substance satisfactory to the Lender,
          authorizing the execution, delivery and performance of this Sixth
          Amendment and all documents, instruments and certificates referred to
          herein.

         12. Each of the Borrowers hereby reaffirms each of its representations,
warranties, covenants and agreements set forth in the Loan Agreement with the
same force and effect as if each were separately stated herein and made as of
the date hereof. Except as amended hereby, the Loan Agreement shall remain

<PAGE>   4

unchanged, and the terms, conditions and covenants of the Loan Agreement shall
continue and be binding upon the parties hereto.

         13. Each of the Borrowers hereby agrees that its liability under any
and all documents and instruments executed by it as security for the
Indebtedness (including, without limitation, the Mortgages, the Security
Agreements, the Collateral Assignment and the Pledges) shall not be reduced,
altered, limited, lessened or in any way affected by the execution and delivery
of this Sixth Amendment or any of the instruments or documents referred to
herein, except as specifically set forth herein or therein, that all of such
documents and instruments are hereby renewed, extended, ratified, confirmed and
carried forward by the Borrowers in all respects, that all of such documents and
instruments shall remain in full force and effect and are and shall remain
enforceable against the Borrowers in accordance with their terms and that all of
such documents and instruments shall cover all indebtedness of the Borrowers to
the Lender described in the Loan Agreement as amended hereby.

         14. Each of the terms defined in the Loan Agreement is used in this
Sixth Amendment with the same meaning, except as otherwise indicated in this
Sixth Amendment. Each of the terms defined in this Sixth Amendment is used in
the Loan Agreement with the same meaning, except as otherwise indicated in the
Loan Agreement.

         15. THIS SIXTH AMENDMENT SHALL BE DEEMED TO BE A CONTRACT UNDER,
SUBJECT TO, AND SHALL BE CONSTRUED FOR ALL PURPOSES IN ACCORDANCE WITH THE LAWS
OF THE STATE OF TEXAS.

         16. THE LOAN AGREEMENT, AS AMENDED, REPRESENTS THE FINAL AGREEMENT
BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.

             THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

         IN WITNESS WHEREOF, the parties have caused this Sixth Amendment to be
executed by their duly authorized officers as of the day and year first above
written.

                                  SERVICE TRANSPORT COMPANY

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

<PAGE>   5

                                  ADAMS RESOURCES EXPLORATION CORPORATION

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

                                  BUCKLEY MINING CORPORATION

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

                                  CJC LEASING, INC.

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

                                  CLASSIC COAL CORPORATION

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

                                  ADA MINING CORPORATION

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

                                  BAYOU CITY PIPELINES, INC.

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Treasurer
                                            ------------------------------------

<PAGE>   6

                                  BANK OF AMERICA, N.A.

                                  By: /s/ JAMES R. ALLRED
                                      ------------------------------------------
                                      Name: James R. Allred
                                            ------------------------------------
                                      Title: Managing Director
                                            ------------------------------------

         Guarantor joins in the execution of this Sixth Amendment to evidence
that it hereby agrees and consents to all of the matters contained in this Sixth
Amendment and further agrees that (i) its liability under that certain Guaranty
Agreement dated October 27, 1993, executed by Guarantor for the benefit of the
Lender, as the same may be amended or modified from time to time (the
"Guaranty") shall not be reduced, altered, limited, lessened or in any way
affected by the execution and delivery of this Sixth Amendment or any of the
instruments or documents referred to herein by the parties hereto, except as
specifically set forth herein or therein, (ii) the Guaranty is hereby renewed,
extended, ratified, confirmed and carried forward in all respects, (iii) the
Guaranty is and shall remain in full force and effect and is and shall remain
enforceable against Guarantor in accordance with its terms and (iv) the Guaranty
shall cover all indebtedness of the Borrowers to the Lender described in the
Loan Agreement as amended hereby, including without limitation the $7,500,000.00
Promissory Note attached as Exhibit "A-2" to this Sixth Amendment.

                                  ADAMS RESOURCES & ENERGY, INC.

                                  By: /s/ R.B. ABSHIRE
                                      ------------------------------------------
                                      Name: R.B. Abshire
                                            ------------------------------------
                                      Title: Vice President
                                            ------------------------------------<PAGE>   1

                                                                     EXHIBIT 4.1

                              AMENDED AND RESTATED
                        CERTIFICATE OF DESIGNATION OF THE
                        POWERS, RIGHTS AND PREFERENCES OF
                    THE SERIES A CONVERTIBLE PREFERRED STOCK
                                       AND
                    THE SERIES B CONVERTIBLE PREFERRED STOCK
                                       OF
                            THE CONCOURS GROUP, INC.

         The following resolutions were duly adopted by the Board of Directors
of The Concours Group, Inc., a Delaware corporation (the "CORPORATION"),
pursuant to the provisions of Section 151 of the General Corporation Law of the
State of Delaware, on February 28, 2000, by unanimous written consent of the
Board of Directors of the Corporation (capitalized terms not otherwise defined
herein shall have the meanings ascribed to them in Section 10 hereof):

         WHEREAS, pursuant to Article 6 of the Certificate of Incorporation of
the Corporation, the preferred stock, par value $0.01 per share (the "PREFERRED
STOCK"), of the Corporation may be divided into and issued in one or more
series;

         WHEREAS, the Board of Directors of the Corporation is vested with the
authority, from time to time, to establish and designate one or more series of
such Preferred Stock and, within the limits prescribed by law and the
Certificate of Incorporation, to fix and determine the relative rights and
preferences of shares of any series of Preferred Stock so established;

         WHEREAS, the Board of Directors of the Corporation has previously
established a series of convertible preferred stock designated "SERIES A
CONVERTIBLE PREFERRED STOCK" (the "SERIES A STOCK"); and

         WHEREAS, the Board of Directors of the Corporation deems it to be in
the best interest of the Corporation to issue a new series of Preferred Stock;

         NOW, THEREFORE, BE IT RESOLVED, that there is hereby established a
series of convertible preferred stock designated "SERIES B CONVERTIBLE PREFERRED
STOCK" (the "SERIES B STOCK," and together with the Series A Stock, the
"DESIGNATED PREFERRED") and that the number of shares that shall constitute such
Series B Stock shall be 1,936,000 shares; and

         RESOLVED FURTHER, that the Corporation's Series A Stock and Series B
Stock shall have the following relative rights and preferences:

<PAGE>   2

         1. DIVIDENDS.

             1.1 Dividends. Subject to the terms and conditions set forth
herein, the holders of shares of the Designated Preferred shall be entitled to
receive dividends at a rate of eight percent (8%) per annum of the original
purchase price per share of such Designated Preferred, which shall be fully
cumulative, and prior and in preference to any declaration or payment of any
dividend or other distribution on any other class or series of Preferred Stock
or the Common Stock (excluding any stock splits and subdivisions for which an
adjustment is made hereunder) pursuant to the terms set forth herein. The
foregoing dividends on the Designated Preferred shall only accumulate and accrue
if the Corporation shall not have filed a registration statement with the
Securities and Exchange Commission ("SEC") for the sale of securities of the
Corporation for its own account on or before two hundred and seventy (270) days
subsequent to the date of the original issuance of the Series B Stock and such
registration statement shall not have been declared effective by the SEC on or
before December 31, 2000. In such event, the foregoing dividends with respect to
the Designated Preferred shall accumulate and accrue retroactively to the date
of the original issuance of the Series B Stock and shall thereafter accumulate
and accrue until the earlier of (i) the conversion of such shares of Designated
Preferred to Common Stock; or (ii) the liquidation, distribution or winding up
of the Corporation. The amount of dividends which accrue for any period that is
shorter or longer than a full annual dividend shall be computed on the basis of
a 365-day year and the actual number of days elapsed (including the first day
but excluding the last day) occurring in the period for which such amount is
payable. If the dividends for any series of Designated Preferred cannot be or
are not paid in full, dividends shall be paid, to the maximum possible extent,
to the holders of Designated Preferred on a pari passu basis, on the basis of
the amount of accrued and unpaid dividends outstanding on each share. No
dividend shall be paid to holders of any series of Designated Preferred unless
dividends are paid to all holders of Designated Preferred pursuant to the terms
of this resolution.

             1.2 Payment-in-Kind. The annual dividends payable each year on the
Designated Preferred shall be paid in shares of the series of Preferred Stock
held by each holder of Designated Preferred (each a "PAYMENT-IN-KIND" or more
than one the "PAYMENTS-IN-KIND"). Each Payment-in-Kind shall be equal in amount
to that number of shares of the applicable series of Preferred Stock that is
equal in number to the aggregate dividend payable on any such dividend date
divided by the applicable Original Issuance Price (as defined herein) for such
series of Preferred Stock, and shall be allocated on a pro rata basis to each
holder entitled to receive such dividend. Certificates representing the shares
of Preferred Stock issuable on payment of any Payment-in-Kind shall be delivered
to each holder entitled to receive such Payment-in-Kind (in appropriate
denominations) on or before the ninetieth (90th) day following the date on which
the dividend is declared (or such later date as the independent determination of
fair market value has been made).

             1.3 Other Permitted Distributions. If, in any dividend period or
periods, full dividends (whether past or current) upon the outstanding
Designated Preferred at the dividend rate set forth herein shall not have been
paid, then, unless and until all dividends accrued and unpaid on the Designated
Preferred through the payment date for such dividends are declared and paid on
each share of Designated Preferred, no dividends or other distributions shall be

                                       2
<PAGE>   3

declared or paid or set apart for payment upon any Common Stock or on any equity
securities ranking junior to the Designated Preferred (such other equity
securities being herein referred to as "JUNIOR STOCK"), nor shall the
Corporation purchase, redeem or otherwise acquire for consideration any such
Common Stock or Junior Stock, except that the Corporation may at any time
(subject to the terms thereof) repurchase, call or otherwise redeem at any time,
out of funds legally available therefor, shares of Common Stock or Preferred
Stock of the Corporation issued to or held by any person (a) subject to the
Corporation's right to purchase such shares contained in any stock purchase or
stock option agreement entered into with such person, (b) pursuant to Section 7
hereof, and (c) pursuant to the terms of that certain Repurchase Rights
Agreement entered into by the Corporation and the other parties signatory
thereto; whether or not dividends on the Series A Preferred or Series B
Preferred shall have been declared and paid or funds set aside therefor, in each
event subject to any other contractual restrictions entered into by the
Corporation.

             1.4 Fractional Shares. If any fractional share of Preferred Stock
would be deliverable pursuant to the terms of Section 1.2, the Corporation shall
deliver certificates evidencing such fractional share.

             1.5 Declared but Unpaid Dividends. Any declared but unpaid
dividends on shares of Designated Preferred will be added to the applicable
Liquidation Value (as defined below) of such shares and will remain a part
thereof until such dividends are paid.

         2. LIQUIDATION PREFERENCE.

             2.1. Liquidation Value; Events Deemed a Liquidation. In the event
of any liquidation, dissolution or winding up of the Corporation, either
voluntary or involuntary (an "EVENT"), the holders of the Designated Preferred
shall be entitled to receive from the assets of the Corporation, after payment
of all debts and liabilities of the Corporation, but prior to and in preference
of any distribution of any of the assets of the Corporation to the holders of
any other equity securities of the Corporation by reason of their ownership
thereof (a) in the case of the Series A Stock, an amount per share of Series A
Stock (the "SERIES A LIQUIDATION VALUE") equal to the sum of the aggregate
consideration paid for the Series A Stock (including contributions to capital
made pro rata by all of the holders of Series A Stock) plus the aggregate amount
of all accrued but unpaid dividends, divided by the number of shares of Series A
Stock outstanding; and (ii) in the case of the Series B Stock, an amount per
share of Series B Stock (the "SERIES B LIQUIDATION VALUE") equal to the sum of
the aggregate consideration paid for the Series B Stock (including contributions
to capital made pro rata by all of the holders of Series B Stock ) plus the
aggregate amount of all accrued but unpaid dividends, divided by the number of
shares of Series B Stock outstanding. After the Series A Liquidation Value is
paid to the holders of Series A Stock and the Series B Liquidation Value is paid
to the holders of the Series B Stock, the remaining assets of the Corporation
shall be distributed to the holders of Common Stock and any other equity
securities entitled thereto, and to the holders of Series A Stock and Series B
Stock, ratably on an as-converted basis. However, if upon the occurrence of an
Event, the total amount of assets of the Corporation, after the payment of all
debts and liabilities of the Corporation, available to be distributed among the
stockholders of the Corporation is insufficient to permit the payment to holders
of Series A Stock and Series B Stock of the full

                                       3
<PAGE>   4

Series A Liquidation Value and Series B Liquidation Value, then the total amount
of assets and funds of the Corporation legally available for distribution to the
holders of the Series A Stock and Series B Stock, shall be distributed among the
holders of Series A Stock and Series B Stock in proportion to the full amount of
the respective Liquidation Value each holder of Series A Stock and Series B
Stock is entitled to receive. For purposes of the payment of the Series A
Liquidation Value and Series B Liquidation Value described in this Section 2.1,
a merger, acquisition, or sale of more than fifty percent (50%) of the voting
securities of the Corporation or a sale of all or substantially all of the
assets of the Corporation with, by or to an entity in which stockholders of the
Corporation do not own a majority of the outstanding shares subsequent to such
sale shall be deemed an Event within the meaning of this Section 2.1.

             2.2. Valuation of Distributed Property. Whenever a distribution
provided for in Section 2.1 is payable in property other than cash, the value of
such distribution shall be the Fair Market Value of such property as determined
by an independent financial services firm mutually acceptable to the Corporation
and to the holders of a majority of the shares of Designated Preferred
(calculated on an as-converted basis).

             2.3. Adjustment. The Series A Liquidation Value and the Series B
Liquidation Value shall be subject to adjustment from time to time as necessary
to reflect changes in the capitalization of the Corporation resulting from stock
dividends, stock distributions, subdivisions, stock splits, reclassifications,
or stock combinations, consolidations, reverse splits or similar events.

             2.4. Notice. The Corporation will give written notice of the
occurrence of any Event to each record holder of Designated Preferred not less
than thirty (30) days prior to the payment of the amounts described in this
Section 2 and each holder of Designated Preferred may convert all or any portion
of its shares of Designated Preferred into shares of Common Stock in the manner
set forth in Section 4 prior to any such payment.

         3. VOTING RIGHTS.

             3.1. Identical Rights. Except as otherwise provided herein, each
share of Designated Preferred shall have identical rights and privileges in
every respect. Except as provided in Section 3.2 and Section 3.3 or as otherwise
required by law, the holders of Designated Preferred shall have the same voting
rights and vote with (and in the same class as) the holders of Common Stock with
respect to every matter voted on by the holders of Common Stock; provided,
however, that the holders of Designated Preferred shall be entitled to the
number of votes they would have received if their shares of Designated Preferred
had been converted into Common Stock (with any fractional shares determined on
an aggregate conversion basis for each holder of Designated Preferred being
rounded up to the next highest whole share), on the record date of any such
stockholder action.

             3.2. Series A Class Vote. As long as any shares of Series A Stock
are outstanding, the Corporation shall not take any of the following actions,
without first obtaining the approval of the holders of a majority of the then
outstanding shares of Series A Stock (by

                                       4
<PAGE>   5

written consent or by vote of the then outstanding shares of Series A Stock,
voting separately as a class):

                  (a) increase or decrease the size of the Board of Directors;

                  (b) amend any provision of its Certificate of Incorporation or
             its By-laws;

                  (c) file a registration statement with the SEC under the Act
             for the registration of any securities of the Corporation in an
             initial public offering unless the initial public offering is a
             Series A Qualifying IPO;

                  (d) (i) sell, lease, exchange, convey or otherwise dispose of
             or encumber all or substantially all of its property or business
             for an amount less than $150,000,000; or (ii) merge into or
             consolidate with any other corporation or other entity (other than
             a wholly-owned Subsidiary of the Corporation) or effect any
             transaction or series of related transactions in which more than
             fifty percent (50%) of the voting power of the Corporation is
             disposed of, unless the value received by the stockholders of the
             Corporation exceeds $150,000,000;

                  (e) alter or change the rights, preferences, privileges or
             restrictions of the shares of Series A Stock so as to affect
             adversely such shares;

                  (f) increase the number of authorized shares of Series A Stock
             or authorize, create or enter into any agreement providing for the
             issuance of shares of any class or series having any preference or
             priority over the Series A Stock, or authorize or create shares of
             any class or any bonds, debentures, notes or other obligations or
             securities convertible into, or exchangeable for, or other
             obligations or securities convertible into, or exchangeable for, or
             having optional rights to purchase, any shares of the Corporation
             having any such preference; or

                  (g) dissolve the Corporation.

             3.3. Series B Class Vote. For as long as at least twenty-five
percent (25%) of the shares of Series B Stock originally issued remain
outstanding, the Corporation (unless it has received the written consent of
two-thirds of the members of the Board of Directors of the Corporation, one of
whom shall be a representative designated by the holders of the Series A Stock
or the Series B Stock prior to the time that a majority of the Corporation's
directors are Independent Directors (as defined herein)) shall not take any of
the following actions, without first obtaining the approval of the holders of a
majority of the then outstanding shares of Series B Stock (by written consent or
by vote of the then outstanding shares of Series B Stock, voting separately as a
class):

                  (a) increase or decrease the size of the Board of Directors;

                                       5
<PAGE>   6

                  (b) amend any provision of its Certificate of Incorporation or
             its By-laws;

                  (c) (i) sell, lease, exchange, convey or otherwise dispose of
             or encumber all or substantially all of its property or business
             for an amount less than $150,000,000; or merge into or consolidate
             with any other corporation or other entity (other than a
             wholly-owned subsidiary of the Corporation) or effect any
             transaction or series of related transactions in which more than
             fifty percent (50%) of the voting power of the Corporation is
             disposed of unless the value received by the stockholders of the
             Corporation exceeds $150,000,000; or

                  (d) dissolve the Corporation.

               For purposes hereof, the term "Independent Directors" shall mean
directors of the Corporation who are not employees of the Corporation or who are
not paid consultants of or under retainer to the Corporation and who are not
affiliates of any holder of Series B Stock.

               So long as at least twenty five percent (25%) of the Series B
Stock originally issued remains outstanding, the Corporation shall not, unless
approved by holders of at least a majority of the issued and outstanding Series
B Stock (by written consent or by vote of the then outstanding shares of Series
B Stock, voting separately as a class) do any of the following:

                  (i) change the rights, preferences, privileges or restrictions
               of the shares of Series B Stock so as to affect adversely such
               shares; or

                  (ii) increase the number of authorized shares of Series B
               Stock or authorize, create or enter into any agreement providing
               for the issuance of shares of any class or series having any
               preference or priority over the Series B Stock, or authorize or
               create shares of any class or any bonds, debentures, notes or
               other obligations or securities convertible into, or exchangeable
               for, or other obligations or securities convertible into, or
               exchangeable for, or having optional rights to purchase, any
               shares of the Corporation having any such preference.

               For so long as at least a majority of the shares of Series B
Stock originally issued remain outstanding, the holders of a majority of the
shares of Series B Stock shall be entitled to nominate and elect one (1)
director as a class. Any vacancy on the Board of Directors occurring because of
the death, resignation or removal of a director elected by the holders of the
Series B Stock shall be filled by the vote or written consent of the holders of
a majority of the shares of Series B Stock. The director nominated and elected
pursuant to the terms of this section shall be from among the original purchaser
of the Series B Stock's board of advisors (or a person mutually agreed upon by
the Corporation and such purchaser with similar credentials and standing), which
nomination shall be subject to the reasonable approval of the Corporation's
Board of Directors.

                                       6
<PAGE>   7

         4. CONVERSION RIGHTS.

             4.1. Voluntary Conversion.

                  (a) Each share of Designated Preferred shall be convertible,
at the option of the holder thereof, at any time, at the office of the
Corporation, into such number of fully paid and nonassessable shares of Common
Stock as is determined by dividing (i) the applicable Original Issuance Price
for such share, plus accrued and unpaid dividends on such share by (ii) the
applicable Conversion Price at the time in effect for such share. The applicable
"ORIGINAL ISSUANCE PRICE" shall be (x) $1.00 per share for the Series A Stock
and (y) $9.760641 per share for the Series B Stock. The initial Conversion Price
shall be (A) $1.00 per share for the Series A Stock (the "SERIES A CONVERSION
PRICE") and (B) $9.760641 per share for the Series B Stock (the "SERIES B
CONVERSION PRICE" and each, a "CONVERSION PRICE").

                  (b) Each conversion of shares of Designated Preferred will be
deemed to have been effected as of the close of business on the date on which
the certificate or certificates representing the shares of Designated Preferred
to be converted, together with properly executed conversion instructions or
powers, have been surrendered for conversion at the principal office of the
Corporation (the "CONVERSION DATE"). On the Conversion Date, the rights of the
holder of such shares of Designated Preferred will cease and the Person or
Persons in whose name or names any certificate or certificates representing
shares of Common Stock are to be issued upon such conversion will be deemed to
have become the holder or holders of record of the shares of Common Stock
represented thereby.

                  (c) As soon as practicable after the Conversion Date (but in
any event within ten (10) business days in the case of Section 4.1(c)(i)), the
Corporation will deliver the following items to the holder of Designated
Preferred so converting its shares (the "CONVERTING HOLDER"):

                      (i) a certificate or certificates representing the number
         of shares of Common Stock issuable by reason of such conversion in such
         name or names and in such denomination or denominations as the
         Converting Holder has specified;

                      (ii) payment in cash or, at the option of the Corporation,
         in shares of Common Stock (valued for such purpose at the applicable
         Conversion Price then in effect) in an amount equal to all accrued
         dividends on each share of Designated Preferred converted which have
         not been paid prior thereto, plus the amount payable, if any, pursuant
         to Section 4.1(d) with respect to such conversion; and

                      (iii) a certificate representing any shares of Designated
         Preferred which were represented by the certificate or certificates
         delivered to the Corporation in connection with such conversion but
         which were not converted.

                  (d) If pursuant to Section 4.1(c)(ii), the Corporation is
obligated to pay accrued dividends with respect to shares of Designated
Preferred being converted and for any reason the Corporation is unable at that
time to pay any amount of the accrued dividends on such shares of Designated
Preferred, the Corporation will pay such dividends to the Converting Holder as
soon thereafter as sufficient funds of the Corporation are legally available for
such

                                       7
<PAGE>   8

payment. At the request of any such Converting Holder, the Corporation will
provide such Converting Holder with written evidence of its obligation to pay
such amounts.

                  (e) The issuance of certificates representing shares of Common
Stock upon conversion of shares of Designated Preferred will be made without
charge to the Converting Holders for any issuance tax in respect thereof or for
any other costs incurred by the Corporation in connection with such conversion
and the related issuance of shares of Common Stock. Upon conversion of each
share of Designated Preferred, the Corporation will take all such actions that
are necessary in order to insure that the shares of Common Stock issued with
respect to such conversion are validly issued, fully paid and nonassessable.

                  (f) If any fractional share of Common Stock would be
deliverable, except for the provisions of this Section 4.1(f), upon any
conversion of shares of Designated Preferred (whether voluntary or automatic as
set forth in Section 4.2), the Corporation, in lieu of delivering the fractional
share therefor, will pay to the Converting Holder an amount equal to the
applicable Conversion Price of such fractional share as of the Conversion Date
or upon the closing of an applicable Qualifying IPO, as the case may be.

             4.2. Automatic Conversion.

                  (a) All issued and outstanding shares of Series A Stock shall
automatically be converted into shares of Common Stock, at the then effective
Series A Conversion Price, upon the consummation of a Series A Qualifying IPO or
upon the approval of the holders of a majority of the outstanding shares of
Series A Stock (by written consent or by vote of the holders of the then
outstanding shares of Series A Stock, voting separately as a class). All issued
and outstanding shares of Series B Stock shall automatically be converted into
shares of Common Stock, at the then effective Series B Conversion Price, upon
the consummation of a Series B Qualifying IPO or upon the approval of a majority
of the holders of the outstanding shares of Series B Stock (by written consent
or by vote of the holders of the then outstanding shares of Series B Stock,
voting separately as a class). Any automatic conversion shall be effected only
at the time of, and subject to, the closing and funding of the applicable
Qualifying IPO and upon written notice of such automatic conversion delivered to
all holders of shares of Series A Stock or Series B Stock, as applicable, at
least twenty (20) but not more than ninety (90) days prior to such closing.

                  (b) Upon the closing of a Qualifying IPO, each share of Series
A Stock or Series B Stock, as applicable, shall automatically be converted
without any further action by the holders of such shares and whether or not the
certificate(s) representing such shares are surrendered to the Corporation or
its transfer agent; provided, however, that the Corporation shall not be
obligated to issue certificate(s) representing shares of Common Stock issuable
upon such automatic conversion unless certificate(s) representing the shares of
Designated Preferred being converted are either delivered to the Corporation or
its transfer agent, or the holder notifies the Corporation or its transfer agent
that such certificates have been lost, stolen or destroyed and executes an
agreement reasonably satisfactory to the Corporation to indemnify the
Corporation from any loss incurred by it in connection therewith. Upon the
automatic conversion of shares of Designated Preferred, the holders of such
shares of Designated Preferred shall surrender the

                                       8
<PAGE>   9

certificates representing such shares at the principal office of the Corporation
or its transfer agent. Promptly following the surrender of certificate(s) of
Designated Preferred, there shall be issued and delivered to such holder at its
last known address shown on the books of the Corporation and in the name or
names indicated on such surrendered certificate(s) or any duly executed
conversion instructions or powers,

                  (i) a certificate or certificates representing the number of
         shares of Common Stock issuable by reason of such automatic conversion
         on the date on which such automatic conversion occurred; and

                  (ii) payment in cash or, at the option of the Corporation, in
         shares of Common Stock (valued for such purpose at the applicable
         Conversion Price then in effect) in an amount equal to all accrued
         dividends on each share of Designated Preferred automatically converted
         which have not been paid prior thereto, plus the amount payable, if
         any, pursuant to Section 4.1(f) with respect to such conversion.

         5. CONVERSION PRICE.

             5.1. Adjustment to Conversion Prices. The Series A Conversion Price
and the Series B Conversion Price will be subject to adjustment from time to
time pursuant to this Section 5.

             5.2. Reduction of Conversion Price. If and whenever on or after the
date of this Amended and Restated Certificate of Designation, the Corporation
issues or sells, or is deemed to have issued or sold, any shares of its Common
Stock for a price per share which is less than the applicable Conversion Price
in effect immediately prior to the effective date of such issuance or sale, then
immediately upon such issuance or sale, the Conversion Price of each share of
Series A Stock and/or Series B Stock, as applicable, will be reduced to an
amount determined by multiplying the Series A Conversion Price and/or the Series
B Conversion Price, as applicable, by a fraction, the numerator of which shall
be (a) the number of shares of Common Stock outstanding immediately prior to
such issuance or sale, plus (b) the number of shares of Common Stock which the
aggregate consideration received by the Corporation upon the sale of such
additional shares of Common Stock would purchase at the Series A Conversion
Price and/or the Series B Conversion Price, as applicable, and the denominator
of which shall be (x) the number of shares of Common Stock outstanding
immediately prior to such issuance or sale, plus (y) the number of additional
shares of Common Stock so issued. For example, if after the date of original
issuance of shares of Series A Stock and Series B Stock, the Corporation issues
100,000 shares of Common Stock for $0.50 per share (when 2,785,714 shares are
outstanding), the Conversion Price for each share of Designated Preferred
immediately would be reduced to a price determined by multiplying $1.00 and
9.760641, respectively (the initial Conversion Prices), by the above fraction as
follows:

         $1.00        X   2,785,714 + 50,000     =   2,835,714     =     $0.98
                          -------------------        ---------
                          2,785,714 + 100,000        2,885,714

                                       9
<PAGE>   10

         $9.760641    X   2,785,714 + 5,122.61   =   2,790,836.61      $9.439728
                          ---------------------      ------------
                          2,785,714 + 100,000         2,885,714

resulting in adjusted Conversion Prices of  $0.98 and $9.439728 respectively.

                  The Conversion Prices will not be adjusted in connection with:

                  (a) any issuance of capital stock, Options (as defined below)
or Convertible Securities (as defined below) of the Corporation pursuant to a
merger, exchange or other acquisition by the Corporation, where such transaction
has been duly approved by directors constituting at least two-thirds of the
directors of the Corporation (provided, however, that the consideration to be
received by holders of the Series A Stock and Series B Stock in any such merger
or exchange shall be consistent);

                  (b) any issuance of capital stock of the Corporation in a
Qualifying IPO;

                  (c) any issuance of Common Stock upon the conversion of any
shares of Series A Stock or Series B Stock;

                  (d) any issuance of capital stock or Options pursuant to a
stock grant, option plan or purchase plan, other employee stock incentive
program or agreement, including, without limitation, pursuant to any such plans
in existence as of the date of this Amended and Restated Certificate of
Designation;

                  (e) any issuance of the Corporation's capital stock, Options
or Convertible Securities to the holders of Series A Stock or Series B Stock
upon the exercise of their preemptive rights;

                  (f) any issuance of the Corporation's capital stock to holders
of Designated Preferred pursuant to the terms hereof; or

                  (g) the issuance of the 1,536,784 shares of Series B Stock
pursuant to the terms of that certain Investment Agreement, dated on or about
February 28, 2000, by and among the Corporation and the other parties signatory
thereto ("Investment Agreement").

             5.3 Effect on Series A Conversion Price and Series B Conversion
Price of Certain Events. For purposes of determining the adjusted Conversion
Prices under Section 5.2, the following will apply:

                  (a) If the Corporation in any manner grants any rights or
options (other than options which form a part of an option pool) ("OPTIONS") to
purchase or subscribe for shares of Common Stock or to purchase or subscribe for
shares of any securities of the Corporation which are convertible into or
exchangeable for Common Stock ("CONVERTIBLE SECURITIES") and the Option exercise
price per share for which Common Stock is issuable upon the exercise of such
Options or upon conversion or exchange of such Convertible Securities, is

                                       10
<PAGE>   11

less than the Series A Conversion Price or the Series B Conversion Price in
effect immediately prior to the grant date of such Options, then, for purposes
of calculating the Series A Conversion Price and/or the Series B Conversion
Price, as applicable, the total maximum number of shares of Common Stock
issuable upon the exercise of such Options, or upon conversion or exchange of
such Convertible Securities issuable upon the exercise of such Options, will be
deemed to be outstanding and to have been issued and sold by the Corporation for
the Option exercise price per share. For purposes of this Section 5.3(a), the
"Option exercise price per share" is determined by dividing (i) the total
amount, if any, received or receivable by the Corporation as consideration for
the granting of such Options, plus the minimum aggregate amount of additional
consideration payable to the Corporation upon exercise of all such Options,
plus, in the case of such Options which relate to applicable Convertible
Securities, the minimum aggregate amount of additional consideration, if any,
payable to the Corporation upon the issuance or sale of such Convertible
Securities and the conversion or exchange thereof, by (ii) the total maximum
number of shares of Common Stock issuable upon the exercise of such Options, or
upon the conversion or exchange of all such Convertible Securities issuable upon
the exercise of such Options. No further adjustment of the applicable Conversion
Price will be made upon the issuance of Convertible Securities or Common Stock,
as the case may be, pursuant to the exercise of Options or the issuance of
Common Stock pursuant to the conversion or exchange of Convertible Securities.

                  (b) If the Corporation in any manner issues or sells any
Convertible Securities and the price per share for which Common Stock is
issuable upon such conversion or exchange is less than the Series A Conversion
Price or Series B Conversion Price in effect immediately prior to the effective
date of such issue or sale, then, for purposes of calculating the Series A
Conversion Price and/or the Series B Conversion Price, as applicable, the
maximum number of shares of Common Stock issuable upon conversion or exchange of
such Convertible Securities will be deemed to be outstanding and to have been
issued and sold by the Corporation for such conversion or exchange price per
share. For the purposes of this Section 5.3(b), the "conversion or exchange
price per share" is determined by dividing (i) the total amount received or
receivable by the Corporation as consideration for the issue or sale of such
Convertible Securities, plus the minimum aggregate amount of additional
consideration, if any, payable to the Corporation upon the conversion or
exchange thereof, by (ii) the total maximum number of shares of Common Stock
issuable upon the conversion or exchange of all such Convertible Securities. No
further adjustment of the applicable Conversion Price will be made upon the
issuance of Common Stock pursuant to the conversion or exchange of such
Convertible Securities, or upon the issuance of Convertible Securities pursuant
to an exercise of any Options, for which adjustments of the Conversion Price had
been or are to be made pursuant to other provisions of this Section 5.

                  (c) If the exercise price per share provided for in any
Options or the additional consideration, if any, payable upon exercise of any
Options, or the rate at which any Options are exercisable for Common Stock
changes at any time, or if the additional consideration, if any, payable upon
the conversion or exchange of any Convertible Securities, or the rate at which
any Convertible Securities are convertible into or exchangeable for Common Stock
changes at any time, the applicable Conversion Price in effect at the time of
such change will be readjusted to the applicable Conversion Price which would
have been in effect at such

                                       11
<PAGE>   12

time if such Options or Convertible Securities still outstanding provided for
such changed purchase price, additional consideration or changed conversion
rate, as the case may be, at the time initially granted, issued or sold.

                  (d) Upon the expiration of any Option or the termination of
any right to convert or exchange any Convertible Security prior to the exercise
of any such Option or right to convert or exchange such Convertible Security,
the applicable Conversion Price then in effect will be adjusted, if necessary,
to equal the applicable Conversion Price which would have been in effect at the
time of such expiration or termination, had such Option or Convertible Security,
to the extent outstanding immediately prior to such expiration or termination,
never been issued.

                  (e) If any Common Stock, Option or Convertible Security is
issued or sold or deemed to have been issued or sold for cash, the consideration
deemed received therefor will be the net amount received by the Corporation
therefor. If any Common Stock, Option or Convertible Security is issued or sold
for consideration other than cash, the amount of the consideration deemed
received by the Corporation for such securities will be the Fair Market Value of
such consideration as of the date of receipt. If any Common Stock, Option or
Convertible Security is issued in connection with any merger in which the
Corporation is the surviving corporation, the amount of consideration deemed
received therefor will be the Fair Market Value of such portion of the net
assets and business of the non-surviving corporation or other entity as is
attributable to such Common Stock, Options or Convertible Securities, as the
case may be.

                  (f) If any Option is issued in connection with the issue or
sale of other securities of the Corporation, together comprising one integrated
transaction in which no specific amount of consideration is allocated to such
Option by the parties thereto, the Option will be deemed to have been issued for
a consideration of $.01 per share.

                  (g) The number of shares of Common Stock outstanding at any
given time does not include shares owned or held by or for the account of the
Corporation or any Subsidiary, and the disposition by the Corporation of any
such shares will be considered an issue or sale of Common Stock.

                  (h) If the Corporation takes a record of the holders of Common
Stock for the purpose of notifying them of a right (i) to receive a dividend or
other distribution payable in Common Stock, Options or Convertible Securities,
or (ii) to subscribe for or purchase Common Stock, Options or Convertible
Securities, then the record date relating thereto will be deemed to be the date
of issuance or sale of the shares of Common Stock deemed to have been issued or
sold upon the declaration of such dividend or upon the making of such other
distribution, or the date of the granting of any such right of subscription or
purchase, as the case may be.

             5.4 Subdivision or Combination of Common Stock. If the Corporation
at any time subdivides (by any stock split, stock dividend, recapitalization or
otherwise) one or more classes of its outstanding shares of Common Stock into a
greater number of shares, the applicable Conversion Price in effect immediately
prior to such subdivision will be

                                       12
<PAGE>   13

proportionately reduced, and if the Corporation at any time combines (by reverse
stock split or otherwise) one or more classes of its outstanding shares of
Common Stock into a smaller number of shares, the applicable Conversion Price in
effect immediately prior to such combination will be proportionately increased.

         6. PREEMPTIVE RIGHTS.

             6.1 Series A Preemptive Rights. Each holder of Series A Stock shall
have preemptive rights to acquire any equity securities proposed to be issued by
the Corporation after the date of this Amended and Restated Certificate of
Designation, on a pro rata basis in accordance with the number of shares of
Common Stock such shares of Series A Stock are convertible into at such time;
provided, however, that such preemptive rights shall not apply to:

                  (a) any issuance of capital stock, Options or Convertible
Securities of the Corporation pursuant to a merger, exchange or other
acquisition by the Corporation, where such transaction has been duly approved by
directors constituting at least two-thirds of the directors of the Corporation
(provided, however, that the consideration to be received by holders of the
Series A Stock and Series B Stock in any such merger or exchange shall be
consistent);

                  (b) any issuance of capital stock of the Corporation in a
Qualifying IPO;

                  (c) any issuance of Common Stock upon the conversion of any
shares of Series A Stock or Series B Stock;

                  (d) any issuance of capital stock or Options pursuant to a
stock grant, option plan or purchase plan, other employee stock incentive
program or agreement, including, without limitation, pursuant to any such plans
in existence as of the date of this Amended and Restated Certificate of
Designation;

                  (e) upon the issuance of any dividend to holders of Designated
Preferred pursuant to the terms hereof; or

                  (f) the issuance of the 1,536,784 shares of Series B Stock
pursuant to the terms of the Investment Agreement.

             6.2 Series B Preemptive Rights. Each holder of Series B Stock shall
have preemptive rights to acquire any equity securities proposed to be issued by
the Corporation after the date of this Amended and Restated Certificate of
Designation, on a pro rata basis in accordance with the number of shares of
Common Stock such shares of Series B Stock are convertible into at such time;
provided, however, that such preemptive rights shall not apply to:

                  (a) any issuance of capital stock, Options or Convertible
Securities of the Corporation pursuant to a merger, exchange or other
acquisition by the Corporation, where such transaction has been duly approved by
directors constituting at least two-thirds of the

                                       13
<PAGE>   14

directors of the Corporation (provided, however, that the consideration to be
received by holders of the Series A Stock and Series B Stock in any such merger
or exchange shall be consistent);

                  (b) any issuance of capital stock of the Corporation in a
Qualifying IPO;

                  (c) any issuance of Common Stock upon the conversion of any
shares of Series A Stock or Series B Stock;

                  (d) any issuance of capital stock or Options pursuant to a
stock grant, option plan or purchase plan, other employee stock incentive
program or agreement, including, without limitation, pursuant to any such plans
in existence as of the date of this Amended and Restated Certificate of
Designation; or

                  (e) upon the issuance of any dividend to holders of Designated
Preferred pursuant to the terms hereof.

             6.3 Notice. In the event the Corporation proposes to undertake an
issuance of any equity securities subject to preemptive rights contained in
Section 6.1 or Section 6.2, it shall give the holders of the shares of the
Designated Preferred written notice of its intention, describing the amount and
type of such equity securities, and the price and terms upon which the
Corporation proposes to issue the same. Each holder of shares of Designated
Preferred having preemptive rights with respect to such securities shall have
ten (10) days from the date of receipt of any such notice to elect to purchase
up to its pro rata share (calculated on an as-converted basis) of such
securities for the price and upon the terms specified in the notice by giving
written notice to the Corporation and stating therein the quantity of such
securities to be purchased. The closing of the purchase of such securities to be
issued and sold to the holders of shares of Designated Preferred shall occur on
the earlier of (a) the tenth (10th) business day after the expiration of the
option period set forth above, or (b) at the same time as the closing of the
sale of such securities not elected or eligible to be purchased by the holders
of shares of Designated Preferred shall occur. In the event that other
stockholders of the Corporation have preemptive rights or rights of first
refusal with respect to such securities and such stockholders do not purchase
such securities ("ADDITIONAL NEW SECURITIES") then the Corporation shall give
notice to the holders of shares of Designated Preferred of such other
stockholders' failure to purchase such Additional New Securities. The holders of
shares of Designated Preferred having preemptive rights with respect to such
securities shall have ten (10) days from the date of receipt of any such notice
to elect to purchase such Additional New Securities for the price and upon the
terms specified in the notice to the holders of shares of Designated Preferred
(which shall be no less favorable than offered to such other stockholders) by
giving written notice to the Corporation and stating therein the quantity of
Additional New Securities to be purchased. The closing of the purchase of the
Additional New Securities to be issued and sold to the holders of the Designated
Preferred shall occur on the earlier of (i) the tenth (10th) business day after
the expiration of the option periods set forth above; or (ii) at the same time
as the closing of the sale of Additional New Securities not elected or eligible
to be purchased by the holders of shares of Designated Preferred shall occur.

                                       14
<PAGE>   15

             6.4 Eligible Sales to Third Parties. After giving the notice and
opportunity for the holders of shares of Designated Preferred to participate as
required under Section 6.3 above (or the holders of shares of Designated
Preferred waiving such rights), the Corporation shall have ninety (90) days
thereafter to issue and sell the applicable securities and the Additional New
Securities not elected nor eligible to be purchased by the holders of shares of
Designated Preferred at the price and upon the terms no more favorable to the
purchasers of such securities than specified in the Corporation's notice under
Section 6.3. In the event the Corporation has not sold such applicable
securities or the Additional New Securities within said ninety (90) day period,
the Corporation shall not thereafter issue or sell any such securities or
Additional New Securities without first offering such securities in the manner
provided above.

         7. REDEMPTION RIGHTS.

             7.1 Redemption Date and Price. At any time after the fifth
anniversary of the original issuance of the Series B Stock and upon receipt by
the Corporation of a written request (a "REDEMPTION ELECTION") from the holders
of not less than sixty-six and two-thirds percent (66 2/3%) of the then
outstanding shares of Series B Stock or Series A Stock that all of the shares of
Series B Stock and/or Series A Stock, as applicable, be redeemed, the
Corporation shall, to the extent it may lawfully do so, redeem all of the shares
of Series B Stock and/or Series A Stock, as applicable, in accordance with the
procedures set forth in this Section 7. The Corporation shall redeem such shares
of Series B Stock and/or Series A Stock, as applicable, on or prior to the date
that is one year subsequent to the date the Corporation receives a Redemption
Election notice (the "REDEMPTION DATE") by paying in cash therefor a sum per
share equal to the greater of (a) the Original Issuance Price of such Series B
Stock and/or Series A Stock, as applicable, (as adjusted for any stock
dividends, combinations or splits with respect to such shares), plus all
declared or accumulated but unpaid dividends on such shares, through to and
including the Redemption Date or (b) the Appraised Value of such shares of
Series B Stock and/or Series A Stock, as applicable (the amounts in clauses (a)
and (b) hereof are each referred to as the "REDEMPTION PRICE"). The Appraised
Value shall be determined as follows: the Company shall have the right to
designate one appraiser with a second appraiser designated by the holders of a
majority of the outstanding shares of Series B Stock and/or Series A Stock, as
applicable. The two appraisers so designated shall designate a third appraiser.
The applicable Appraised Value shall be the average of any two or three
appraisals where the valuations in such appraisals are within 10% of each other.
If such condition is not satisfied, the Appraised Value shall be the average of
the valuations of all three appraisers. The fees of such appraisers and costs of
any appraisals shall be paid equally by the Corporation and the holders of
shares of Series B Stock and/or Series A Stock, as applicable.

             7.2 Procedure. Within fifteen (15) days following its receipt of
the Redemption Election, the Corporation shall mail a written notice, first
class postage prepaid, to each holder of record (at the close of business on the
business day next preceding the day on which notice is given) of Series B Stock
and/or Series A Stock, as applicable, at the address last shown on the records
of the Corporation for such holder, notifying such holder of the redemption to
be effected, specifying the number of shares to be redeemed from such holder,
the Redemption Date, the Redemption Price, the place at which payment may be
obtained and calling upon such holder to surrender to the Corporation, in the
manner and at the place

                                       15
<PAGE>   16

designated, such holder's certificate or certificates representing the shares to
be redeemed (the "REDEMPTION NOTICE"). On the Redemption Date, each holder of
shares of Series B Stock and/or Series A Stock, as applicable, to be redeemed
shall surrender to the Corporation the certificate or certificates representing
such shares, in the manner and at the place designated in the Redemption Notice,
and thereupon the Redemption Price of such shares shall be payable to the order
of the person whose name appears on such certificate or certificates as the
owner thereof and each surrendered certificate shall be canceled. A copy of the
Redemption Notice shall be mailed simultaneously to each holder of Series B
Stock and/or Series A Stock, as applicable.

             7.3 Effect of Redemption; Insufficient Funds. From and after the
receipt by the Corporation of the Redemption Election, all rights of the holders
of shares of Series B Stock and/or Series A Stock, as applicable, designated for
redemption in the Redemption Notice (except the right to receive the Redemption
Price without interest upon surrender of their certificate or certificates)
shall cease with respect to such shares, and such shares shall not thereafter be
transferred on the books of the Corporation or be deemed to be outstanding for
any purpose whatsoever. If the funds of the Corporation legally available for
redemption of shares of Series B Stock and/or Series A Stock, as applicable, on
the Redemption Date are insufficient to redeem the total number of shares of
Series B Stock and/or Series A Stock, as applicable to be redeemed on such date,
those funds which are legally available will be used to redeem the maximum
possible number of such shares ratably among the holders of such shares to be
redeemed based upon the total Redemption Price applicable to each such holder's
shares of Series B Stock and/or Series A Stock, as applicable. At any time
thereafter when additional funds of the Corporation are legally available for
the redemption of shares of Series B Stock and/or Series A Stock, as applicable,
such funds will immediately be used to redeem the balance of the shares which
the Corporation has become obligated to redeem on the Redemption Date but which
it has not redeemed.

             7.4 Conversion to Note. Notwithstanding anything else contained
herein, if the Corporation shall not have redeemed the shares of Series B Stock
and/or Series A Stock, as applicable, by the Redemption Date, each holder of
shares of such capital stock may convert such shares into a full recourse
promissory note (the "NOTES") of the Corporation. The principal amount of each
Note shall be equal to the Redemption Price to be paid for such shares of
capital stock. Each Note shall be secured by a pledge from the Corporation of
the securities for which the Note is executed, and the Corporation hereby agrees
to take all actions and execute all documents (in form reasonably satisfactory
to the holders of such capital stock) necessary or appropriate to properly and
fully secure each Note with the securities transferred in exchange therefor. In
addition, each Note shall be in a form reasonably satisfactory to the holders of
such capital stock and shall in any case, unless otherwise agreed to by the
parties (a) have a term of one (1) year, (b) provide for repayment of the
aggregate Redemption Price at a rate no less than one-fourth per quarter, with
principal and interest payable in such equal quarterly installments, and (c)
provide that the unpaid balance of the Note shall accrue interest at the rate of
12% per annum, compounded on a quarterly basis, from the date of issuance until
full payment of the aggregate Redemption Price is made.

                                       16
<PAGE>   17

         8. REGISTRATION OF TRANSFERS. The Corporation will keep at its
principal office a register of shares of Designated Preferred. Upon the
surrender to the Corporation at its principal office of any certificate(s)
representing shares of Designated Preferred, the Corporation will, at the
request of the record holder of such certificate(s), execute and deliver (at the
Corporation's expense) a new certificate or certificates in exchange therefor
representing in the aggregate the number of shares of Designated Preferred
represented by the surrendered certificate(s). Each new certificate will be
registered in such name and will represent such number of shares of Designated
Preferred as is requested by the holder of the surrendered certificate(s) and
will be substantially identical in form to the surrendered certificate(s).
Dividends, if any, will accrue on the shares of Designated Preferred represented
by such new certificate(s) beginning upon the last date on which dividends were
fully paid on such shares of Designated Preferred represented by the surrendered
certificate(s).

         9. REPLACEMENT OF CERTIFICATES. Upon receipt of evidence reasonably
satisfactory to the Corporation (an affidavit of the registered holder will be
satisfactory) of the ownership and loss, theft, destruction or mutilation of any
certificate(s) representing shares of Designated Preferred, and in the case of
any such loss, theft or destruction, upon receipt of indemnity reasonably
satisfactory to the Corporation, or, in the case of any mutilation, upon
surrender of such certificate(s) if possible, the Corporation will (at its
expense) execute and deliver in lieu of such certificate(s), a new certificate
of like kind representing the number of shares of Designated Preferred
represented by such lost, stolen, destroyed or mutilated certificate(s), and
dividends, if any, will accrue on the shares of Designated Preferred represented
by such new certificate from the date which dividends were fully paid on shares
represented by such lost, stolen, destroyed or mutilated certificate(s).

         10. DEFINITIONS. The following definitions shall apply:

             "ACT" means the Securities Act of 1933, as amended.

             "APPRAISED VALUE" means the fair market value of the Series B Stock
as determined by a panel of three appraisers in the manner described in Section
7.1.

             "COMMON STOCK" means collectively the Corporation's Common Stock,
par value $.01 per share, and any capital stock of any class of the Corporation
hereafter authorized which is not limited to a fixed sum or percentage of par or
stated value with respect to the rights of the holders thereof to participate in
dividends or in the distribution of assets upon any liquidation, dissolution or
winding up of the Corporation.

             "CONVERSION PRICE" means the Series A Conversion Price or the
Series B Conversion Price, as the context requires.

             "FAIR MARKET VALUE" means the fair market value as determined by a
majority of the Board of Directors of the Corporation for purposes of Section
2.2 and Section 5.3(e).

                                       17
<PAGE>   18

             "PERSON" means an individual, partnership, corporation,
association, joint stock corporation, trust, joint venture, unincorporated
organization and governmental entity or any department, agency or political
subdivision thereof.

             "SERIES A QUALIFYING IPO" means any underwritten public offering by
the Corporation covering the offer and sale to the public of equity securities
pursuant to an effective registration statement under the Act, or any successor
statute, in which (i) the aggregate cash proceeds to be received by the
Corporation and/or selling stockholders from such offering (without deducting
underwriting discounts, expenses and commissions) are at least $10,000,000; and
(ii) the initial public offering price per share paid by the public for such
shares is at least $3.00 (as adjusted for stock dividends, stock distributions,
subdivisions, stock splits, reclassifications, or stock combinations,
consolidations, reverse splits or similar events).

             "SERIES B QUALIFYING IPO" means any underwritten public offering by
the Corporation covering the offer and sale to the public of equity securities
pursuant to an effective registration statement under the Act, or any successor
statute, in which the aggregate cash proceeds to be received by the Corporation
and/or selling stockholders from such offering (without deducting underwriting
discounts, expenses and commissions) are at least $25,000,000.

             "QUALIFYING IPO" shall mean a Series A Qualifying IPO or a Series B
Qualifying IPO, as the context requires.

             "SUBSIDIARY" means any corporation of which more than 50% of the
outstanding voting securities are owned by the Corporation or any subsidiary of
the Corporation, directly or indirectly, or a partnership or limited liability
company in which the Corporation or any Subsidiary is a general partner or
manager or holds interests entitling it to receive more than 50% of the profits
or losses of the partnership or limited liability company.

         11. AMENDMENT AND WAIVER. No amendment, modification or waiver of the
terms of this designation of Designated Preferred will be binding or effective
without the prior approval of the holders of at least a majority of the shares
of Series A Stock and Series B Stock outstanding (each voting as a separate
class) at the time such action is taken; provided, however, that if such action
would change (a) the rate at which or the manner in which dividends on the
shares of Series A Stock or Series B Stock accrue; (b) the times at which such
dividends become payable; (c) the Series A Conversion Price or the Series B
Conversion Price; (d) the number of shares or class of stock into which the
shares of Series A Stock or Series B Stock are convertible; or (e) the
percentage required to approve any change described in this Section 11, then the
prior approval of the holders of all the shares of Series A Stock and/or Series
B Stock, as applicable, then outstanding is required. In addition, no change in
the terms of this designation of Designated Preferred may be accomplished by
merger or consolidation of the Corporation with another corporation or other
entity unless the Corporation has obtained the prior approval of the holders of
at least a majority of the shares of Series A Stock and Series B Stock (each
voting as a separate class) then outstanding.

                                       18
<PAGE>   19

         12. NOTICES.

             12.1. Immediately upon any adjustment of a Conversion Price, the
Corporation will give written notice thereof to all holders of shares of
Designated Preferred affected by such adjustment.

             12.2. The Corporation will give written notice to all holders of
shares of Designated Preferred at least ten (10) days prior to the date on which
the Corporation closes its books or takes a record (a) with respect to any
dividend or distribution upon Common Stock; (b) with respect to any pro rata
subscription offer to holders of Common Stock; or (c) for determining rights to
vote with respect to any matter referred to in Section 3 hereof.

             12.3. Except as otherwise expressly provided, all notices referred
to herein will be in writing and will be delivered by registered or certified
mail, return receipt requested, postage prepaid and will be deemed to have been
given when so mailed (a) to the Corporation, at its principal executive offices;
and (b) to any stockholder, at such stockholder's address as it appears in the
records of the Corporation (unless otherwise indicated in writing by any such
stockholder).

                            [SIGNATURE PAGE FOLLOWS]

                                       19
<PAGE>   20

         EXECUTED this 28th day of February, 2000.

                                      THE CONCOURS GROUP, INC.

                                      By:
                                         ---------------------------------------
                                           Dr. Ron Christman, President

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00003-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00003-of-00352.parquet"}]]