**EXHIBIT      10.64**

**AMENDED      AND RESTATED SUBORDINATION AGREEMENT**

**SUBORDINATION      AGREEMENT**

| 1. | Definitions.                (a) Unless otherwise defined herein, terms defined in the Purchase                Agreement or the Senior Notes and used herein shall have the respective                meanings given to them in the Purchase Agreement or the Senior                Notes. |
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|  | (b) | The                following terms shall have the following                meanings: |
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      composition or other relief with respect to it or its debts, or (2) seeking      appointment of a receiver, trustee, custodian, conservator or other similar      official for it or for all or any substantial part of its assets, or the      Borrower or Primal making a general assignment for the benefit of its creditors;      or (b) there being commenced against the Borrower or Primal any case, proceeding      or other action of a nature referred to in clause (a) above which (1) results      in      the entry of an order for relief or any such adjudication or appointment or      (2)      remains undismissed, undischarged or unbonded for a period of 60 days; or (c)      there being commenced against the Borrower or Primal any case, 

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      proceeding), whether direct or indirect, absolute or contingent, due or to      become due, or now existing or hereafter incurred, whether or not arising under,      out of, or in connection with, the Senior Loan Agreement, the Senior Notes,      this      Agreement, the other Senior Loan Documents or any other document made, delivered      or given by Borrower, in each case whether on account of principal, interest,      reimbursement obligations, fees, indemnities, costs, expenses or otherwise      (including, without limitation, all fees and disbursements of counsel to the      Senior Lender that are required to be paid by the Borrower).

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|  | (c) | The                words “hereof,” “herein” and “hereunder” and words of similar import when                used in this Agreement shall refer to this Agreement as a whole and                not to                any particular provision of this Agreement, and section and paragraph                references are to this Agreement unless otherwise                specified. |
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|  | (d) | The                meanings given to terms defined herein shall be equally applicable                to both                the singular and plural forms of such                terms. |
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| 2. | Subordination.                (a)  The Borrower, Primal, and each of the Subordinated Lenders                    agrees, for itself and each future holder of the Subordinated                Obligations,                that the Subordinated Obligations are expressly “subordinate and junior in                right of payment” (as that phrase is defined in paragraph 2(b)) to all                Senior Obligations. |
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|  | (b) | “Subordinate                and junior in right of payment”                means that (1) no part of the Subordinated Obligations shall have                any                claim to the assets of the Borrower on a parity with or prior to                the claim                of the Senior Obligations; and (2) unless and until the Senior Obligations                have been paid in full, without the express prior written consent                of the                Senior Lender (A) no Subordinated Lender will take or receive from                the                Borrower, and the Borrower will not make, give or permit, directly                or                indirectly, by set-off, redemption, purchase or in any other manner,                any                payment of (of whatever kind or nature, whether in cash, property,                securities or otherwise) or security for the whole or any part of                the                Subordinated Obligations, including, without limitation, any letter                of                credit or similar credit support facility to support payment of the                Subordinated Obligations;                provided, however                ,                that at any time, except during a Blockage Period or when a Payment                Event                of Default has occurred and is continuing, the Borrower may make,                and the                Subordinated Lenders may receive, regularly scheduled payments on                account                of principal of and interest on the Subordinated Notes in accordance                with                the terms thereof determined on a pre-default non- accelerated basis,                and                (B) no Subordinated Lender will accelerate for any reason the scheduled                maturities of any amount owing under the Subordinated Notes unless                or                until Senior Lender accelerates amounts owing under the Senior                Obligations. |
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|  | (c) | Upon                the termination of any Blockage Period or if any Payment Event of                Default                has been cured or waived or shall have ceased to exist, as confirmed                in                writing by Senior Lender, the Subordinated Lenders’ right to receive                payments as provided in clause 2(b)(2)(A) shall be reinstated, and                the                Borrower may resume making such payments to the Subordinated Lenders                (including any payments that were deferred as a result                thereof). |
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|  | (d) | The                expressions “prior payment in full,” “payment in full,” “paid in full” and                any other similar terms or phrases when used herein with respect                to the                Senior Obligations shall mean the payment in full, in immediately                available funds, of all of the Senior                Obligations. |
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| 3. | Additional                Provisions Concerning Subordination.                (a)  The Subordinated Lenders, the Borrower and Primal agree that                upon the occurrence of any Insolvency                Event: |
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|  | (1) | all                Senior Obligations shall be paid in full before any payment or                distribution of whatever kind or nature is made with respect to the                Subordinated Obligations; and |
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|  | (2) | any                payment or distribution of assets of the Borrower, whether in cash,                property or securities, to which any Subordinated Lender would be                entitled                except for the provisions hereof, shall be paid or delivered by the                Borrower, or any receiver, trustee in bankruptcy, liquidating trustee,                disbursing agent or other Person making such payment or distribution,                directly to the Senior Lender, to the extent necessary to pay in                full all                Senior Obligations, before any payment or distribution of any kind                or                nature shall be made to any Subordinated                Lender. |
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|  | (b) | Upon                the occurrence of any “Insolvency                Event”: |
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|  | (1) | each                Subordinated Lender irrevocably authorizes and empowers the Senior                Lender                (A) to demand, sue for, collect and receive every payment or distribution                on account of the Subordinated Obligations payable or deliverable                in                connection with such event or proceeding and give acquittance therefor,                and (B) to file claims and proofs of claim in any statutory or                non-statutory proceeding and take such other actions, in its own                name as                Senior Lender, or in the name of the Subordinated Lenders or otherwise,                as                the Senior Lender may deem necessary or advisable for the enforcement                of                the provisions of this Agreement;                provided                ,                however                ,                that the foregoing authorization and empowerment imposes no obligation                on                the Senior Lender to take any such                action; |
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|  | (2) | each                Subordinated Lender shall take such commercially reasonable action,                duly                and promptly, as the Senior Lender may request from time to time                (A) to                collect the Subordinated Obligations for the account of the Senior                Lender                and (B) to file appropriate proofs of claim in respect of the Subordinated                Obligations; and |
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|  | (3) | each                Subordinated Lender shall execute and deliver such powers of attorney,                assignments or proofs of claim or other instruments as the Senior                Lender                may request to enable the Senior Lender to enforce any and all claims                in                respect of the Subordinated Obligations and to collect and receive                any and                all payments and distributions which may be payable or deliverable                at any                time upon or in respect of the Subordinated                Obligations. |
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|  | (c) | If                any payment or distribution, whether consisting of money, property                or                securities, shall be collected or received by any Subordinated Lender                in                respect of the Subordinated Obligations, except payments permitted                to be                made at the time of payment as provided in paragraph 2(b), such                Subordinated Lender forthwith shall deliver the same to the Senior                Lender,                in the form received, duly indorsed to the Senior Lender, if required,                to                be applied to the payment or prepayment of the Senior Obligations                until                the Senior Obligations are paid in full. Until so delivered, such                payment                or distribution shall be held in trust by such Subordinated Lender                as the                property of the Senior Lender, segregated from other funds and property                held by such Subordinated Lender. |
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| 4. | Rights                in Collateral.                (a)  Notwithstanding anything to the contrary contained in the Senior                Loan Agreement, any Senior Security Document, any other Senior Loan                Document or any Subordinated Security Document or other Subordinated                Loan                Document and irrespective of: |
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|  | (1) | the                time, order or method of attachment or perfection of the security                interests created by any Senior Security Document or any Subordinated                Security Document; |
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|  | (2) | the                time or order of filing or recording of financing statements or other                documents filed or recorded to perfect security interests in any                Collateral; |
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|  | (3) | anything                contained in any filing or agreement to which the Senior Lender or                any                Subordinated Lender now or hereafter may be a party; and |
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|  | (4) | the                rules for determining perfection or priority under the Uniform Commercial                Code or any other law governing the relative priorities of secured                creditors, |
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|  |   | any                security interest in any Collateral pursuant to any Senior Security                Document has and shall have priority, to the extent of any unpaid                Senior                Obligations, over any security interest in such Collateral pursuant                to any                Subordinated Security Document. |
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|  | (b) | So                long as the Senior Obligations have not been paid in full and any                Senior                Security Document remains in effect, whether or not any Insolvency                Event                has occurred, and whether or not demand for payment of any Subordinated                Obligations has been made, |
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|  | (1) | no                Subordinated Lender will (A) exercise or seek to exercise any rights                or                exercise any remedies with respect to any Collateral or (B) institute                any                action or proceeding with respect to such rights or remedies, including                without limitation, any action of foreclosure or (C) contest, protest                or                object to any foreclosure proceeding, postpetition financing, use                of cash                collateral or action brought by the Senior Lender or any other exercise                by                the Senior Lender of any rights and remedies under any Senior Loan                Documents; and |
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|  | (2) | the                Senior Lender shall have the exclusive right to enforce rights and                exercise remedies with respect to the Collateral and Senior Lender                shall                not be required to marshal any                Collateral. |
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|  | (c) | In                exercising rights and remedies with respect to the Collateral, the                Senior                Lender may enforce the provisions of the Senior Security Documents                and                exercise remedies thereunder and under any other Senior Loan Documents,                all in such order and in such manner as it may determine in the exercise                of its sole business judgment. Such exercise and enforcement shall                include, without limitation, the rights to sell or otherwise dispose                of                Collateral, to incur expenses in connection with such sale or disposition                and to exercise all the rights and remedies of a secured lender under                the                Uniform Commercial Code of any applicable                jurisdiction. |
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|  | (d) | When                all Senior Obligations have been paid in full and the Senior Security                Documents no longer are in effect, the Subordinated Lenders shall                have the                right to enforce the provisions of the Subordinated Security Documents                and                exercise remedies thereunder. |
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|  | (e) | Any                money, property or securities realized upon the sale, disposition                or other                realization by the Senior Lender upon all or any part of the Collateral,                shall be applied by the Senior Lender in the following                order: |
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|  | (1) | First,                to the payment in full of all costs and expenses (including, without                limitation, attorneys’ fees and disbursements) paid or incurred by the                Senior Lender in connection with the such realization on the Collateral                or                the protection of their rights and interests                therein; |
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|  | (2) | Second,                to the payment in full of all Senior Obligations in such order as                the                Senior Lender may elect in its sole                discretion; |
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|  | (3) | Third,                to the payment in full of all Subordinated Obligations then due and                which                are secured by such Collateral, which shall be paid to the Subordinated                Lenders; and |
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|  | (4) | Fourth,                to pay to the Borrower, or its representative or as a court of competent                jurisdiction may direct, any surplus then                remaining. |
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|  | (f) | The                Senior Lender’s rights with respect to the Collateral include the right to                release any or all of the Collateral from the Lien of any Senior                Security                Document or Subordinated Security Document in connection with the                sale of                such Collateral, notwithstanding that the net proceeds of any such                sale                may not be used to permanently prepay any Senior Obligations or                Subordinated Obligations. If the Senior Lender shall determine, in                connection with any sale of Collateral, that the release of the Lien                of                any Subordinated Security Document on such Collateral in connection                with                such sale is necessary or advisable, the Subordinated Lenders shall                execute such release documents and instruments and shall take such                further                actions as the Senior Lender shall request. Each Subordinated Lender                hereby irrevocably constitutes and appoints the Senior Lender and                any                officer or Senior Lender, with full power of substitution, as its                true and                lawful attorney-in-fact with full irrevocable power and authority                in the                place and stead of such Subordinated Lender and in the name of such                Subordinated Lender or in the Senior Lender’s own name, from time to time                in the Senior Lender’s discretion, for the purpose of carrying out the                terms of this paragraph, to take any and all appropriate action and                to                execute any and all documents and instruments which may be necessary                or                desirable to accomplish the purposes of this paragraph, including,                without                limitation, any financing statements, endorsements, assignments or                other                instruments of transfer or release. Each Subordinated Lender hereby                ratifies all that said attorneys shall lawfully do or cause to be                done                pursuant to the power of attorney granted in this                paragraph. |
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| 5. | Consent                of Subordinated Lenders.                (a)  Each Subordinated Lender consents that, without the necessity of                any reservation of rights against any Subordinated Lender, and without                notice to or further assent by any Subordinated                Lender: |
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|  | (1) | any                demand for payment of any Senior Obligations made by the Senior Lender                may                be rescinded in whole or in part by the Senior Lender, and any Senior                Obligation may be continued, and the Senior Obligations, or the liability                of the Borrower or any guarantor or any other party upon or for any                part                thereof, or any collateral security or guarantee therefor or right                of                offset with respect thereto, or any obligation or liability of the                Borrower or any other party under the Senior Loan Agreement or any                other                agreement, may, from time to time, in whole or in part, be renewed,                extended, modified, accelerated, compromised, waived, surrendered,                or                released by the Senior Lender; and |
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|  | (2) | the                Senior Loan Agreement, the Senior Notes and any other Senior Loan                Document                may be amended, modified, supplemented or terminated, in whole or                in part,                as the Senior Lender may deem advisable from time to time, and any                collateral security at any time held by the Senior Lender for the                payment                of any of the Senior Obligations may be sold, exchanged, waived,                surrendered or released, in                each case all without notice to or further assent by any Subordinated                Lender, which will remain bound under this Agreement, and all without                impairing, abridging, releasing or affecting the subordination provided                for herein. Notwithstanding the foregoing, Senior Lender shall provide                Subordinated Lender notice of any and all demands for payment of                any                Senior Obligations made by the Senior Lender. |
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|  | (b) | Each                Subordinated Lender waives any and all notice of the creation, renewal,                extension or accrual of any of the Senior Obligations and notice                of or                proof of reliance by the Senior Lender upon this Agreement. The Senior                Obligations, and any of them, shall be deemed conclusively to have                been                created, contracted or incurred in reliance upon this Agreement,                and all                dealings between the Borrower and the Senior Lender shall be deemed                to                have been consummated in reliance upon this Agreement. Each Subordinated                Lender acknowledges and agrees that the Senior Lender has relied                upon the                subordination provided for herein in entering into the Senior Loan                Agreement and in making funds available to the Borrower thereunder.                Each                Subordinated Lender waives notice of or proof of reliance on this                Agreement and protest, demand for payment and notice of                default. |
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| 6. | Negative                Covenants of the Subordinated Lenders.                So long as any of the Senior Obligations shall remain outstanding                or the                obligation of Senior Lender to extend credit to Borrower remains                in                effect, no Subordinated Lender shall, without the prior written consent                of                the Senior Lender: |
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|  | (a) | sell,                assign, or otherwise transfer, in whole or in part, the Subordinated                Obligations or any interest therein to any other Person (a “                Transferee”)                or create, incur or suffer to exist any security interest, lien,                charge or                other encumbrance whatsoever upon the Subordinated Obligations in                favor of                any Transferee unless (1) such action is made expressly subject to                this                Agreement and (2) the Transferee expressly acknowledges to the Senior                Lender, by a writing in form and substance satisfactory to the Senior                Lender, the subordination provided for herein and agrees to be bound                by                all of the terms hereof, or (3) such sale, assignment or transfer                is to a                subsidiary, affiliate or parent company of Subordinated Lender which                expressly acknowledges to the Senior Lender, by a writing in form                and                substance satisfactory to the Senior Lender, the subordination provided                for herein and agrees to be bound by all of the terms hereof, or                any                entity which succeeds to substantially all of Subordinated Lender’s assets                by merger, sale or otherwise; |
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|  | (b) | permit                any of the Subordinated Loan Documents to be amended, modified or                otherwise supplemented; |
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|  | (c) | commence,                or join with any creditors other than the Senior Lender in commencing                any                case or proceeding referred to in the definition of Insolvency                Event. |
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| 7. | Senior                Obligations Unconditional.                All rights and interests of the Senior Lender hereunder, and all                agreements and obligations of the Subordinated Lenders, the Borrower                and                Primal hereunder, shall remain in full force and effect irrespective                of: |
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|  | (a) | any                lack of validity or enforceability of any Senior Security Documents                or any                other Senior Loan Documents; |
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|  | (b) | any                change in the time, manner or place of payment of, or in any other                term                of, all or any of the Senior Obligations, or any amendment or waiver                or                other modification, whether by course of conduct or otherwise, of                the                terms of the Senior Loan Agreement or any other Senior Security                Document; |
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|  | (c) | any                exchange, release or non-perfection of any security interest in any                Collateral, or any release, amendment, waiver or other modification,                whether in writing or by course of conduct or otherwise, of all or                any of                the Senior Obligations or any guarantee thereof;                or |
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|  | (d) | any                other circumstances which otherwise might constitute a defense available                to, or a discharge of, the Borrower in respect of the Senior Obligations,                or of either any Subordinated Lender or the Borrower in respect of                this                Agreement. |
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| 8. | Representations                and Warranties.                Each Subordinated Lender represents and warrants to the Senior Lender                that: |
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|  | (a) | its                Subordinated Notes (1) have been issued to it for good and valuable                consideration, (2) are owned by the such Subordinated Lender free                and                clear of any security interests, liens, charges or encumbrances whatsoever                arising from, through or under such Subordinated Lender, other than                the                interest of the Senior Lender under this Agreement, (3) are payable                solely                and exclusively to such Subordinated Lender and to no other Person                and are                payable without deduction for any defense, offset or counterclaim,                and (4)                constitute the only evidence of the obligations evidenced                thereby; |
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|  | (b) | such                Subordinated Lender has the requisite power and authority and the                legal                right to execute and deliver and to perform its obligations under                this                Agreement and has taken all necessary action to authorize its execution,                delivery and performance of this                Agreement; |
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|  | (c) | this                Agreement constitutes a legal, valid and binding obligation of such                Subordinated Lender; |
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|  | (d) | the                execution, delivery and performance of this Agreement will not violate                any                provision of any Requirement of Law or Contractual Obligation of                such                Subordinated Lender and will not result in the creation or imposition                of                any Lien on any of the properties or revenues of such Subordinated                Lender                pursuant to any statute, law, rule or regulation or any judgment,                decree                or order of any governmental authority affecting or any contract,                understanding or arrangement to which such Subordinated Lender is                bound or                subject, except the interest of the Senior Lender under this Agreement;                and |
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|  | (e) | no                consent or authorization of, filing with, or other act by or in respect                of, any arbitrator or governmental authority and no consent of any                other                Person (including, without limitation, any equity holder or creditor                of                such Subordinated Lender), is required in connection with the execution,                delivery, performance, validity or enforceability of this                Agreement. |
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| 9. | No                Representation. |
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|  | (a) | The                Senior Lender has not made, and does not hereby or otherwise make                to the                Subordinated Lenders, any representations or warranties, express,                or                implied, nor does the Senior Lender assume any liability to any                Subordinated Lender, with respect to: (a) the financial or other                condition                of obligors under any instruments of guarantee with respect to the                Senior                Obligations, (b) the enforceability, validity, value or collectibility                of                the Senior Obligations or the Subordinated Obligations, any collateral                therefor, or any guarantee or security which may have been granted                in                connection with any of the Senior Obligations or the Subordinated                Obligations, or (c) the Borrower’s title or right to transfer any                collateral or security. |
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|  | (b) | The                Subordinated Lender has not made, and does not hereby or otherwise                make to                the Senior Lenders, any representations or warranties, express, or                implied, nor does the Subordinated Lender assume any liability to                any                Senior Lender, with respect to: (a) the financial or other condition                of                obligors under any instruments of guarantee with respect to the                Subordinated Obligations, (b) the enforceability, validity, value                or                collectibility of the Subordinated Obligations or the Senior Obligations,                any collateral therefor, or any guarantee or security which may have                been                granted in connection with any of the Subordinated Obligations, or                (c) the                Borrower’s title or right to transfer any collateral or                security. |
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| 10. | Waiver                of Claims.                To the maximum extent permitted by law, each Subordinated Lender                waives                any claim it might have against the Senior Lender with respect to,                or                arising out of, any action or failure to act or any error of judgment,                negligence, or mistake or oversight whatsoever on the part of the                Senior                Lender, or its directors, officers, employees or agents with respect                to                any exercise of rights or remedies under the Senior Loan Documents                or any                transaction relating to the Collateral, except for claims based on                gross                negligence or willful misconduct. Neither the Senior Lender, nor                any of                its directors, officers, employees or agents shall be liable for                failure                to demand, collect or realize upon any of the Collateral or for any                delay                in doing so or shall be under any obligation to sell or otherwise                dispose                of any Collateral upon the request of the Borrower or any Subordinated                Lender or any other Person or to take any other action whatsoever                with                regard to the Collateral or any part                thereof. |
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| 11. | Provisions                Applicable After Bankruptcy: No Turnover.                The provisions of this Agreement shall continue in full force and                effect                notwithstanding the occurrence of any Insolvency Event. To the extent                that                any Subordinated Lender has or acquires any rights under Section                362, 363                or 364 of the Bankruptcy Code with respect to the Collateral, such                Subordinated Lender hereby agrees not to assert such rights without                the                prior written consent of the Senior Lender, which shall not be                unreasonably withheld or delayed;                provided that                ,                if requested by the Senior Lender, such Subordinated Lender shall                seek to                exercise such rights in the manner requested by the Senior Lender,                including the rights in payments in respect of such rights. Each                of the                Subordinated Lenders (both in its capacity as Subordinated Lender                and in                its capacity as a party which may be obligated to Borrower or any                of                Borrower’s Affiliates with respect to contracts which are part of the                Senior Lender’s Collateral) agrees not to initiate or prosecute or                encourage any other Person to initiate or prosecute any claim, action,                objection or other proceeding (i) challenging the enforceability                of the                Senior Lender’s claim (ii) challenging the enforceability of any liens or                security interests in assets securing the Senior Obligations or (iii)                asserting any claims which the Borrower may hold with respect to                the                Senior Lender, (iv) objecting to any sale or other disposition of                Borrower’s assets consented to by Senior Lender in any bankruptcy or other                proceeding or any borrowing or grant of any lien by Borrower consented                to                by Senior Lender in any such                proceeding. |
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| 12. | Further                Assurances.                The Subordinated Lenders, the Borrower and Primal, at their own expense                and at any time from time to time, upon the written request of the                Senior                Lender will promptly and duly execute and deliver such further instruments                and documents and take such further actions as the Senior Lender                reasonably may request for the purposes of obtaining or preserving                the                full benefits of this Agreement and of the rights and powers herein                granted. |
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| 13. | Expenses.                (a)  The Borrower will pay or reimburse the Senior Lender and                Subordinated Lender, upon demand, for all its costs and expenses                in                connection with the                enforcement or preservation of any rights under this Agreement, including,                without limitation, reasonable fees and disbursements of counsel                to the                Senior Lender and Subordinated                Lender. |
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|  | (b) | The                Borrower will pay, indemnify, and hold each Senior Lender and Subordinated                Lender harmless from and against any and all other liabilities,                obligations, losses, damages, penalties, actions (whether sounding                in                contract, tort or on any other ground), judgments, suits, costs,                expenses                or disbursements of any kind or nature whatsoever with respect to                the                execution, delivery, enforcement, performance and administration                of, or in                any other way arising out of or relating to this Agreement or any                action                taken or omitted to be taken by any Senior Lender or Subordinated                Lender                with respect to any of the                foregoing. |
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| 14. | Provisions                Define Relative Rights.                This Agreement is intended solely for the purpose of defining the                relative                rights of the Senior Lender on the one hand and the Subordinated                Lenders                on the other, and no other Person shall have any right, benefit or                other                interest under this Agreement. |
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| 15. | **Legend****.                Each Subordinated Lender and the Borrower will cause each of the                Subordinated Notes and each Subordinated Security Document to bear                upon                its face a legend referring to this Agreement and indicating that                such                documents are subordinated as provided                herein.** |
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| 16. | Powers                Coupled With An Interest.                All powers, authorizations and agencies contained in this Agreement                are                coupled with an interest and are irrevocable until the Senior Obligations                are paid in full and the obligation of the Senior Lender to extend                credit                under the Senior Loan Documents is irrevocably                terminated. |
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| 17. | Notices.                All notices, requests and demands to or upon the Senior Lender or                the                Borrower or Primal or any Subordinated Lender to be effective shall                be in                writing (or by telex, fax or similar electronic transfer confirmed                in                writing) and shall be deemed to have been duly given or made (1)                when                delivered by hand or (2) if given by mail, when deposited in the                mails by                certified mail, return receipt requested, or (3) if by telex, fax                or                similar electronic transfer, when sent and receipt has been confirmed,                addressed as follows: |
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If      to the      Borrower:

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| 18. | Counterparts.                This Agreement may be executed by one or more of the parties on any                number                of separate counterparts, and all of said counterparts taken together                shall be deemed to constitute one and the same instrument. A set                of the                counterparts of this Agreement signed by all the parties shall be                lodged                with the Senior Lender. |
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| 19. | Severability.                Any provision of this Agreement which is prohibited or unenforceable                in                any jurisdiction shall, as to such jurisdiction, be ineffective to                the                extent of such prohibition or unenforceability without invalidating                the                remaining provisions hereof, and any such prohibition or unenforceability                in any jurisdiction shall not invalidate or render unenforceable                such                provision in any other                jurisdiction. |
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| 20. | Integration.                This Agreement represents the agreement of the Senior Lender and                the                Subordinated Lenders with respect to the subject matter hereof and                there                are no promises or representations by the Senior Lender or any                Subordinated Lender relative to the subject matter hereof not reflected                herein. |
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| 21. | Amendments                in Writing; No Waiver: Cumulative Remedies.                (a)  None of the terms or provisions of this Agreement may be waived,                amended, supplemented or otherwise modified except by a written instrument                executed by the Senior Lender, the Borrower and each Subordinated                Lender;                provided                that any provision of this Agreement may be waived by the Senior                Lender in                a letter or agreement executed by the Senior Lender or by telex or                facsimile transmission from the Senior                Lender. |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  | (b) | No                failure to exercise, nor any delay in exercising, on the part of                the                Senior Lender, any right, power or privilege hereunder shall operate                as a                waiver thereof. No single or partial exercise of any right, power                or                privilege hereunder shall preclude any other or further exercise                thereof                or the exercise of any other right, power or                privilege. |
|--|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  | (c) | The                rights and remedies herein provided are cumulative, may be exercised                singly or concurrently and are not exclusive of any other rights                or                remedies provided by law. |
|--|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 22. | Section                Headings.                The section headings used in this Agreement are for convenience of                reference only and are not to affect the construction hereof or be                taken                into consideration in the interpretation                hereof. |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 23. | Successors                and Assigns.                (a) This Agreement shall be binding upon the successors, heirs,                administrators, executors and assigns of the Borrower and the Subordinated                Lenders and shall inure to the benefit of the Senior Lender and their                successors and assigns. |
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|  | (b) | Upon                a successor Senior Lender becoming the Senior Lender under the Senior                Loan                Agreement, such successor Senior Lender automatically shall become                the                Senior Lender hereunder with all the rights and powers of the Senior                Lender hereunder without the need for any further action on the part                of                any party hereto. |
|--|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24. | Invalidated                Payments.                To the extent that the Senior Lender receives payments on, or proceeds                of                Collateral for, the Senior Obligations which are subsequently invalidated,                declared to be fraudulent or preferential, set aside and/or required                to be                repaid to Borrower, a trustee, receiver or any other party under                any                bankruptcy law, state or federal law, common law, or equitable cause,                then                to the extent of such payment or proceeds received, the Senior                Obligations, or part thereof, intended to be satisfied shall be revived                and continue in full force and effect as if such payments or proceeds                had                not been received by the Senior                Lender. |
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| 25. | Specific                Performance.                The Senior Lender is hereby authorized to demand specific performance                of                this Agreement at any time when any Subordinated Lender shall have                failed                to comply with any of the provisions of this Agreement applicable                to such                Subordinated Lender whether or not the Borrower shall have complied                with                any of the provisions hereof applicable to the Borrower, and the                Subordinated Lender hereby irrevocably waives any defense based on                the                adequacy of a remedy at law which might be asserted as a bar to such                remedy of specific performance. |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 26. | GOVERNING                LAW: CONSENT TO JURISDICTION AND VENUE.                EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN ANY OF THE LOAN DOCUMENTS,                IN                ALL RESPECTS, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND                PERFORMANCE, THIS AGREEMENT AND THE OBLIGATIONS ARISING HEREUNDER                SHALL BE                GOVERNED BY, AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS                OF                THE STATE OF NEW YORK APPLICABLE TO CONTRACTS MADE AND PERFORMED                IN SUCH                STATE, AND ANY APPLICABLE LAWS OF THE UNITED STATES OF AMERICA. EACH                OF                THE BORROWER, THE SUBORDINATED LENDERS, PRIMAL AND THE SENIOR LENDER                HEREBY CONSENTS AND AGREES THAT THE STATE OR FEDERAL COURTS LOCATED                IN NEW                YORK SHALL HAVE EXCLUSIVE JURISDICTION TO HEAR AND DETERMINE ANY                CLAIMS OR                DISPUTES                AMONG THE BORROWER, PRIMAL, THE SUBORDINATED LENDERS AND THE SENIOR                LENDER                PERTAINING TO THIS AGREEMENT OR TO ANY MATTER ARISING OUT OF OR RELATING                TO THIS AGREEMENT OR ANY OF THE SENIOR LOAN DOCUMENTS,                PROVIDED                ,                THAT THE PARTIES HERETO ACKNOWLEDGE THAT ANY APPEALS FROM THOSE COURTS                MAY                HAVE TO BE HEARD BY A COURT LOCATED OUTSIDE OF NEW YORK AND,                PROVIDED, FURTHER                THAT NOTHING IN THIS AGREEMENT SHALL BE DEEMED OR OPERATE TO PRECLUDE                THE                SENIOR LENDER FROM BRINGING SUIT OR TAKING OTHER LEGAL ACTION IN                ANY OTHER                JURISDICTION TO REALIZE ON THE COLLATERAL OR ANY OTHER SECURITY FOR                THE                SENIOR OBLIGATIONS, OR TO ENFORCE A JUDGMENT OR OTHER COURT ORDER                IN FAVOR                OF THE SENIOR LENDER. EACH OF THE BORROWER, PRIMAL AND THE SUBORDINATED                LENDERS EXPRESSLY SUBMITS AND CONSENTS IN ADVANCE TO SUCH JURISDICTION                IN                ANY ACTION OR SUIT COMMENCED IN ANY SUCH COURT, AND EACH OF THE BORROWER,                PRIMAL AND THE SUBORDINATED LENDERS HEREBY WAIVES ANY OBJECTION WHICH                IT                MAY HAVE BASED UPON LACK OF PERSONAL JURISDICTION, IMPROPER VENUE                OR                FORUM NON CONVENIENS                .                EACH OF THE BORROWER, PRIMAL AND THE SUBORDINATED LENDERS HEREBY                WAIVES                PERSONAL SERVICE OF THE SUMMONS, COMPLAINTS AND OTHER PROCESS ISSUED                IN                ANY SUCH ACTION OR SUIT AND AGREES THAT SERVICE OF SUCH SUMMONS,                COMPLAINTS AND OTHER PROCESS MAY BE MADE BY REGISTERED OR CERTIFIED                MAIL                ADDRESSED TO IT AT THE ADDRESS SET FORTH IN THE CREDIT AGREEMENT                OR                BENEATH ITS SIGNATURE LINE BELOW, AS THE CASE MAY BE, AND THAT SERVICE                SO                MADE SHALL BE DEEMED COMPLETED UPON THE EARLIER OF THE BORROWER’S,                PRIMAL’S OR ANY SUBORDINATED LENDER’S ACTUAL RECEIPT THEREOF OR THREE (3)                DAYS AFTER DEPOSIT IN THE U.S. MAILS, PROPER POSTAGE                PREPAID. |
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| 27. | MUTUAL                WAIVER OF JURY TRIAL.                THE PARTIES HERETO WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION,                SUIT,                OR PROCEEDING BROUGHT TO RESOLVE ANY DISPUTE, WHETHER SOUNDING IN                CONTRACT, TORT, OR OTHERWISE, BETWEEN THE PARTIES ARISING OUT OF,                CONNECTED WITH, RELATED TO, OR INCIDENTAL TO THE RELATIONSHIP ESTABLISHED                BETWEEN THEM IN CONNECTION WITH, THIS AGREEMENT OR ANY OF THE SENIOR                LOAN                DOCUMENTS OR THE TRANSACTIONS RELATED                THERETO. |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

**IN      WITNESS WHEREOF**

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**SENIOR      LENDERS:**

**SPECIAL      SITUATIONS FUND III QP, L.P.**

**SPECIAL      SITUATIONS FUND III, L.P.**

**SPECIAL      SITUATIONS PRIVATE EQUITY FUND, L.P.**

**SPECIAL      SITUATIONS TECHNOLOGY FUND, L.P.**

**SPECIAL      SITUATIONS TECHNOLOGY FUND II, L.P.**

| **By:**                                                          | /s/                David M. Greenhouse |   |
|------------------------------------------------------------------|----------------------------------------|--------|
|  **Name: **                                            |                                   |
|  **Title: **                                           |                                   |
|                                                             |
|                                                             |
| **BORROWER:**                                                    |
|                                                             |
| **WIRELESS                BILLING SYSTEMS**                      |
|                                                             |
|                                                             |
| **By:**                                                          | /s/                Joseph R. Simrell   |   |
| **Name: **Joseph R. Simrell                                 |
| **Title: **Chief Executive Officer                          |
|                                                             |
|                                                             |
| **PRIMAL:**                                                      |
|                                                             |
| **PRIMAL                SOLUTIONS, INC.**                        |
|                                                             |
|                                                             |
| **By:**                                                          | /s/                Joseph R. Simrell   |   |
| **Name:** Joseph                R. Simrell                  |
| **Title:** Chief                Executive Officer, Chairman |
|                                                             |
|                                                             |
| **SUBORDINATED                LENDER:**                          |
|                                                             |
| **LIGHTBRIDGE,                INC.**                             |
|                                                             |
|                                                             |
| **By:**                                                          | /s/                Tim C. O'Brien      |   |
| **Title:**                                                       | Chief                Financial Officer |
|                                                             |
| **Address:**                                                     |
| 30                Corporate Drive                                |                                   |
| Burlington,                MA  01803                        |                                   |
|                                                             |                                   |
| **Fax:**                                                         | 781-359-4500                           |   |
|                                                             |                                   |   |   |   |   |   |

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