EXHIBIT
      10.63


**CONFIRMATION
      OF GUARANTY**


**BY**


**PRIMAL
      SOLUTIONS, INC.**







THIS
      CONFIRMATION OF GUARANTY (this “ **Agreement** ”)
      is
      given on this 1st day of January 2007 by PRIMAL SOLUTIONS, INC. (“ **Guarantor** ”),
      to
      Lightbridge, Inc. (“ **Beneficiary** ”).




RECITALS:




A. Wireless
        Billing Systems, a California corporation (“ **Wireless** ”),
        executed that certain Secured Promissory Note dated May 26, 1999, in the
        principal amount of Two Million Two Hundred Thirty-Eight Thousand Two Hundred
        Forty-Two Dollars ($2,238,242.00) in favor of Corsair Communications, Inc.
        (“ **Corsair** ”)
        (the
“ **Original
        Note** ”);
        and




B.  Wireless
      executed that certain Note Agreement dated as of January 1, 2001 (the
“ **Note
      Agreement** ”),
      and
      that certain Amended and Restated Secured Promissory Note on January 1, 2001,
      in
      the principal amount of One Million Six Hundred Ninety-Six Thousand Three
      Hundred Ninety-Four Dollars and Eighteen Cents ($1,696,394.18) in favor of
      Corsair (together, the “ **January
      2001 Amended Note** ”);
      and





C.  Wireless
      and Corsair executed a letter agreement dated December 20, 2001, revising the
      terms of the January 2001 Amended Note. The January 2001 Amended Note, as
      amended by said letter agreement (the “ **December
      2001 Amended Note** ”),
      amended and restated the Original Note; and




D.  Beneficiary
      succeeded to the assets and liabilities of Corsair by way of merger;




E.  Wireless
      executed that certain 2002 Amended and Restated Secured Promissory Note dated
      December 27, 2002, in the principal amount of One Million Seven Hundred
      Twenty-Two Thousand Four Hundred Seventeen Dollars ($1,722,417.00) in favor
      of
      Beneficiary (the “ **2002
      Amended Note** ”),
      which
      amended and restated the December 2001 Amended Note;




F.  Guarantor
      executed that certain Guaranty dated as of December 27, 2002 in favor of
      Beneficiary in order to induce Beneficiary to agree to the revised payment
      terms
      reflected in the 2002 Amended Note;




G.  Wireless
      executed that certain 2004 Amended and Restated Secured Promissory Note dated
      March 27, 2004, in the principal amount of One Million Five Hundred Nine
      Thousand Nine Hundred Nineteen Dollars ($1,509,919.00) in favor of Beneficiary
      (the “ **2004
      Amended Note** ”),
      which
      amended and restated the December 2002 Amended Note;







H.  Guarantor
      executed that certain Guaranty dated as of March 27, 2004 in favor of
      Beneficiary in order to induce Beneficiary to agree to the revised payment
      terms
      reflected in the 2004 Amended Note;




I.  Guarantor
      executed that certain 2005 Amended and Restated Secured Promissory Note dated
      June 30, 2005, in the principal amount of Nine Hundred Eighty Two Thousand
      Two
      Hundred Forty Three Dollars and Forty Cents ($982,243.40) in favor of
      Beneficiary (the **“2005
      Amended Note”** ),
      which
      amended and restated the 2004 Amended Note;




J.  Guarantor
      executed that certain Guaranty dated as of June 30, 2005 in favor of Beneficiary
      in order to induce Beneficiary to agree to the revised payment terms reflected
      in the 2005 Amended Note;




K.  Guarantor
      executed that certain 2006 Amended and Restated Secured Promissory Note dated
      March 31, 2006, in the principal amount of Nine Hundred Eighty Two Thousand
      Two
      Hundred Forty Three Dollars and Forty Cents ($982,243.40) in favor of
      Beneficiary (the **“2006
      Amended Note”** ),
      which
      amended and restated the 2005 Amended Note;




L.  Guarantor
      executed that certain Guaranty dated as of March 31, 2006 in favor of
      Beneficiary in order to induce Beneficiary to agree to the revised payment
      terms
      reflected in the 2006Amended Note;




K.  The
      balance of all outstanding principal and accrued but unpaid interest under
      the
      2006 Amended Note on the date hereof is Nine Hundred Eighty Two Thousand Two
      Hundred Forty Three Dollars and Forty Cents ($982,243.40) and the 2006 Amended
      Note matures on January 1, 2007;




L.  Wireless
      has requested that the terms reflected in the 2006 Amended Note be revised
      in
      order to reflect a different repayment schedule for the outstanding debt
      evidenced thereby, all as set forth more fully in the 2007 Amended and Restated
      Secured Promissory Note (the " **2007
      Amended Note** ");




M.  Beneficiary
      desires to obtain the acknowledgment and consent of Guarantor to the 2007
      Amended Note and the confirmation by Guarantor of its obligations under the
      Guaranty as a condition to accepting the 2007 Amended Note;




NOW,
      THEREFORE, Guarantor hereby represents, warrants, certifies and agrees in favor
      of Beneficiary as follows:




1.  Acknowledgment,
      Consent and Confirmation .
      Guarantor hereby (i) acknowledges that Wireless has disclosed to Guarantor
      the terms and conditions on which Wireless and Beneficiary desire to amend
      and
      restate the debt owed by Wireless to Beneficiary, and (ii) consents to the
      modification of such debt as provided in the 2007 Amended Note. Guarantor
      confirms that (a) the term "Obligations" in the Guaranty shall be deemed to
      include all of Wireless' s obligations under the 2007 Amended Note, as the
      same
      may be further amended or modified from time to time, including the payment
      of
      principal and interest on the terms set forth







therein,
      (b) the Guaranty remains in full force and effect, and shall be effective as
      a
      guaranty of Wireless's obligations under the 2007 Amended Note, as the same
      may
      be further amended or modified from time to time, and (c) Guarantor remains,
      pursuant to the terms of the Guaranty, obligated to perform its obligations
      thereunder.




2.  Binding
      Effect .
      This
      Agreement shall be binding upon Guarantor and its respective successors and
      assigns and shall inure to the benefit of Beneficiary and its respective
      successors and assigns.




3.  Governing
      Law .
      This
      Agreement shall be governed by, and construed in accordance with, the laws
      of
      the State of California.




4.  Notices .
      The
      provisions of Section 12 (Notices) of the Guaranty shall apply to this Agreement
      as if the same was set out in full herein.




5.  Counterparts .
      This
      Agreement may be executed by the parties hereto in separate counterparts, each
      of which when so executed and delivered shall be an original, but all such
      counterparts shall together constitute one and the same instrument.








[SIGNATURE
      PAGE FOLLOWS]





IN
      WITNESS WHEREOF, Guarantor has caused this Agreement to be duly executed as
      of
      the day and year first above written.









**PRIMAL SOLUTIONS,
              INC.**By:
            /s/
                Joseph R. SimrellName:
            Joseph
                R. SimrellTitle:
            Chief
                Executive Officer, Chairman








Accepted
                as of thedate
                below written:**LIGHTBRIDGE, INC.**.By:
              /s/
                  Timothy C. O'BrienName:
              Timothy
                  C. O'BrienTitle:
              Chief
                  Financial OfficerDate:
              March
                  12, 2007