UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE TO/A
            TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                               (Amendment No. 4)

                          ELITE INFORMATION GROUP, INC.
                            (Name of Subject Company)

                         GULF ACQUISITION CORP. (OFFEROR)
                        THE THOMSON CORPORATION (PARENT)
                       (Names of Filing Persons (Offeror))

                     Common Stock, Par Value $0.01 Per Share
                         (Title of Class of Securities)

                                    28659M106
                      (CUSIP Number of Class of Securities)

                              DEIRDRE STANLEY, ESQ.
                             THE THOMSON CORPORATION
                         METRO CENTER, ONE STATION PLACE
                           STAMFORD, CONNECTICUT 06902
                            TELEPHONE: (203) 969-8700
(Name, Address and Telephone Number of Persons Authorized to Receive Notices and
                  Communications on Behalf of Filing Persons)

                                    Copy to:

                              PETER J. ROONEY, ESQ.
                               SHEARMAN & STERLING
                              599 LEXINGTON AVENUE
                            NEW YORK, NEW YORK 10022
                            TELEPHONE: (212) 848-4000

                            CALCULATION OF FILING FEE

          TRANSACTION VALUATION*                 AMOUNT OF FILING FEE**

             $122,363,052.90                           $9,899.17

*    Estimated for purposes of calculating the amount of the filing fee only.
     Calculated by adding (i) the product of 7,890,600, which is the number of
     Shares outstanding as of April 4, 2003, and $14.00, which is the per Share
     tender offer price, and (ii) the product of 1,694,395, which is the number
     of Shares subject to options outstanding as of April 4, 2003 with an
     exercise price of less than $14.00, and $7.02, which is the difference
     between the $14.00 per Share tender offer price and the average weighted
     exercise price of the options, which is $6.98.

**   Calculated by multiplying the transaction value by 0.00008090.

[X]  Check the box if any part of the fee is offset as provided by Rule
     0-11(a)(2) and identify the filing with which the offsetting fee was
     previously paid. Identify the previous filing by registration statement
     number, or the Form or Schedule and the date of its filing.

Amount Previously Paid:  $9,899.17         Filing Party: The Thomson Corporation
                         -------------                   -----------------------
Form or Registration No.: Schedule TO      Date Filed: April 11, 2003
                          ------------                 -------------------------

[ ]  Check the box if the filing relates solely to preliminary communications
     made before the commencement of a tender offer.

Check the appropriate boxes to designate any transactions to which the statement
relates:

[X] third-party tender offer subject to Rule 14d-1.

[ ] issuer tender offer subject to Rule 13e-4.

[ ] going-private transaction subject to Rule 13e-3.

[ ] amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results
of the tender offer: [ ]


               This Amendment No. 4 amends and supplements the Tender Offer
Statement on Schedule TO (the "Schedule TO") filed on April 11, 2003 by Gulf
Acquisition Corp., a Delaware corporation ("Purchaser") and an indirect
wholly-owned subsidiary of The Thomson Corporation, a corporation organized
under the laws of Ontario, Canada ("Thomson"). On April 17, 2003, Purchaser and
Thomson filed Amendment No. 1 to the Schedule TO. On April 28, 2003, Purchaser
and Thomson filed Amendment No. 2 to the Schedule TO. On April 30, 2003,
Purchaser and Thomson filed Amendment No. 3 to the Schedule TO. The Schedule TO
relates to the offer by Purchaser to purchase any and all of the outstanding
shares of common stock, par value $0.01 per share (the "Shares"), of Elite
Information Group, Inc., a Delaware corporation (the "Company"), at a purchase
price of $14.00 per Share, net to the seller in cash, without interest, upon the
terms and subject to the conditions described in the Offer to Purchase, dated
April 11, 2003 (the "Offer to Purchase"), and in the related Letter of
Transmittal, copies of which are attached to the Schedule TO as Exhibits (a)(1)
and (a)(2), respectively (which, together with any amendments or supplements
thereto, collectively constitute the "Offer"). Capitalized terms used and not
otherwise defined herein shall have the meanings ascribed to such terms in the
Offer to Purchase or the Schedule TO.

ITEM 4.        TERMS OF THE TRANSACTION.

               Item 4 of the Schedule TO is hereby amended and supplemented to
include the following information.

               Section 14. Certain Conditions of the Offer.

               The following paragraph is added as the second to last paragraph
of Section 14 on page 38:

               "On May 8, 2003, Thomson was informed by the FTC (as defined
    below) that early termination of the waiting period under the HSR Act
    relating to the purchase of Shares pursuant to the Offer has been granted.
    Accordingly, the Regulatory Condition has been satisfied."

ITEM 11.       ADDITIONAL INFORMATION.

               Item 11 of the Schedule TO is hereby amended and supplemented
to include the following additional information.

               Section 15.  Certain Legal Matters and Regulatory Approvals.

               The sixth paragraph of Section 15 on page 39 is amended and
restated in its entirety to read as follows:

               "Pursuant to the HSR Act, on April 16, 2003, Thomson filed a
    Premerger Notification and Report Form in connection with the purchase of
    the Shares pursuant to the Offer with the Antitrust Division and the FTC.
    On April 30, 2003, Thomson withdrew and re-filed its Premerger Notification
    and Report Form in connection with the purchase of Shares pursuant to the
    Offer with the Antitrust Division and the FTC. Under the provisions of the
    HSR Act applicable to the Offer, the purchase of Shares pursuant to the
    Offer may not be consummated until the expiration of a 15-calendar day
    waiting period following the filing by Thomson. On May 8, 2003, Thomson was
    informed by the FTC that early termination of the 15-calendar day waiting
    period under the HSR Act relating to the purchase of Shares pursuant to the
    Offer has been granted. Accordingly, the Regulatory Condition has been
    satisfied. The Offer remains conditioned as described in "Section 14.
    Certain Conditions of the Offer.""


ITEM 12.       MATERIAL TO BE FILED AS EXHIBITS.

            
(a)(1)         Offer to Purchase, dated April 11, 2003.**

(a)(2)         Form of Letter of Transmittal.**

(a)(3)         Form of Notice of Guaranteed Delivery.**

(a)(4)         Form of Letter to Brokers, Dealers, Commercial Banks, Trust
               Companies and Other Nominees.**

(a)(5)         Form of Letter from Brokers, Dealers, Commercial Banks, Trust
               Companies and Nominees to Clients.**

(a)(6)         Form of Guidelines for Certification of Taxpayer Identification
               Number on Substitute Form W-9.**

(a)(7)         Summary Advertisement as published in The New York Times on
               April 11, 2003.**

(a)(8)         Joint Press Release issued by Thomson and the Company on April 3,
               2003.*

(a)(9)         Press Release issued by Thomson on April 11, 2003.**

(a)(10)        Press Release issued by Thomson on May 8, 2003.

(d)(1)         Agreement and Plan of Merger, dated as of April 2, 2003, among
               Thomson, Purchaser and the Company.**

(d)(2)         Stockholders Support Agreement, dated as of April 2, 2003, among
               Thomson, Purchaser and each of PAR Investment Partners, L.P.,
               Arthur G. Epker III, Christopher K. Poole, David A. Finley, Roger
               Noall, Alan Rich and William G. Seymour.**

(d)(3)         Employment Agreement, dated as of April 10, 2003, between the
               Company and Christopher K. Poole.**

(d)(4)         Confidentiality Agreement, dated as of October 7, 2002, between
               the Company and Thomson.**

(g)            None.

(h)            None.

ITEM 13.       INFORMATION REQUIRED BY SCHEDULE 13E-3.

               Not applicable.


-----------
 * Previously filed on April 3, 2003 with the Securities and Exchange
   Commission on Schedule TO-C by Purchaser and Thomson.

** Incorporated by reference to the Schedule TO filed by Purchaser and Thomson
   on April 11, 2003.



               After due inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated:  May 8, 2003

                                            GULF ACQUISITION CORP.


                                            By: /s/ Edward A. Friedland
                                               ---------------------------------
                                                Name:  Edward A. Friedland
                                                Title: Vice President

                                            THE THOMSON CORPORATION


                                            By: /s/ Edward A. Friedland
                                               ---------------------------------
                                                Name:  Edward A. Friedland
                                                Title: Assistant Secretary



                                  EXHIBIT INDEX


EXHIBIT
NO.
           
(a)(1)         Offer to Purchase, dated April 11, 2003.**

(a)(2)         Form of Letter of Transmittal.**

(a)(3)         Form of Notice of Guaranteed Delivery.**

(a)(4)         Form of Letter to Brokers, Dealers, Commercial Banks, Trust
               Companies and Other Nominees.**

(a)(5)         Form of Letter from Brokers, Dealers, Commercial Banks, Trust
               Companies and Nominees to Clients.**

(a)(6)         Form of Guidelines for Certification of Taxpayer Identification
               Number on Substitute Form W-9.**

(a)(7)         Summary Advertisement as published in The New York Times on
               April 11, 2003.**

(a)(8)         Joint Press Release issued by Thomson and the Company on April 3,
               2003.*

(a)(9)         Press Release issued by Thomson on April 11, 2003.**

(a)(10)        Press Release issued by Thomson on May 8, 2003.

(d)(1)         Agreement and Plan of Merger, dated as of April 2, 2003, among
               Thomson, Purchaser and the Company.**

(d)(2)         Stockholders Support Agreement, dated as of April 2, 2003, among
               Thomson, Purchaser and each of PAR Investment Partners, L.P.,
               Arthur G. Epker III, Christopher K. Poole, David A. Finley, Roger
               Noall, Alan Rich and William G. Seymour.**

(d)(3)         Employment Agreement, dated as of April 10, 2003, between the
               Company and Christopher K. Poole.**

(d)(4)         Confidentiality Agreement, dated as of October 7, 2002, between
               the Company and Thomson.**

(g)            None.

(h)            None.


-----------
 * Previously filed on April 3, 2003 with the Securities and Exchange
   Commission on Schedule TO-C by Purchaser and Thomson.

** Incorporated by reference to the Schedule TO filed by Purchaser and Thomson
   on April 11, 2003.