Document:

<PAGE>   1

                                                                   Exhibit 10.78

                                 January 8, 1998

                            PERSONAL AND CONFIDENTIAL

Mr. Vince Pisano
Educational Medical, Inc.
1327 Northmeadow Parkway
Suite 132
Roswell, GA 30076

         Re:      Educational Medical, Inc. (the "Company")
                  Various Compensation Issues

Dear Vince:

         The Board of Directors (the "Board") of the Company has requested me to
set forth the agreement reached between the Board, on behalf of the Company, and
yourself concerning various compensation issues relating to any sale or change
in control of the Company resulting from the current undertaking to find a
strategic or financial buyer (an "Investment Transaction").

         If the Company completes any Investment Transaction with respect to
which the aggregate gross consideration per share (the "Purchase Price Per
Share") with respect to each share of the Company's outstanding Common Stock
equals or exceeds $10.00 per share, you and Mr. Kerber will receive, pro rata
based on your then current regular cash compensation, $500,000 plus 2% of the
amount by the total Purchase Price Per Share for all then outstanding shares
exceeds $10.00 per share. These payments will be made to you and Mr. Kerber
simultaneously with the closing of the Investment Transaction, but only if the
Board determines that each of you has made a good faith effort to complete the
Investment Transaction as intended and have taken no action which reasonably
could be considered as intended to impair the completion of the Investment
Transaction.

         Should you be terminated from your employment with the Company for any
reason other than for cause within twelve (12) months after the closing of an
Investment Transaction, you will receive monthly payments equaling one year's
salary, at your regular cash compensation level at the time of termination,
after offsetting any cash compensation you receive from any other employment or
consulting activities during such period. A reduction in salary or material
change in responsibility, exclusive of change in title only (e.g., becoming the
chief financial officer of a division operating substantially all of the
Company's business but without the title of Chief Financial Officer or
Vice-President), will constitute

<PAGE>   2

Mr. Vince Pisano                                       PERSONAL AND CONFIDENTIAL
January 8, 1998
Page 2

termination other than for cause. As Chief Financial Officer of the Company,
except as otherwise provided in this Agreement, all other terms of your
employment will be subject to the same employment terms contained in Mr.
Kerber's current employment contract.

         In the event that your employment with the Company is terminated
without cause within the twelve (12) month period following the completion of an
Investment Transaction, health and related benefits will be continued by the
Company for twelve (12) months following date of termination. Such health and
related benefits shall be continued at the level in place on the date of
termination. Additionally, the Company will provide, upon request, outplacement
services at a cost not to exceed $35,000.

         Stock options concerns have been addressed by separate correspondence.

         Should any element of this agreement be proposed for amendment by
management at a later date, all elements will be subject to reconsideration.

         If the above accurately reflects your understanding of the agreement
between yourself and the Board, please sign the enclosed duplicate copy of this
letter and return it to me at your earliest convenience.

                                           Sincerely,

                                           /s/ Morris C. Brown
                                           Morris C. Brown, Secretary

Acknowledged and Agreed:

        /s/ Vince Pisano
--------------------------------
Vince Pisano

Date: January 8, 1998<PAGE>   1

                                                                        Ex 10.17

                            LEASE AMENDING AGREEMENT

            THIS AGREEMENT is made as of the 25th of February, 20000

BETWEEN:

                  302 TOWN CENTRE LIMITED, a corporation
                  incorporated under the laws of the Province of
                  Ontario

                  (hereinafter called the "Landlord")

                                                              OF THE FIRST PART

                   -and-

                   DELANO TECHNOLOGY CORPORATION, a
                   corporation incorporated under the laws of the
                   Province of Ontario

                   (hereinafter called the "Tenant")

                                                              OF THE SECOND PART

WHEREAS:

1.     By a lease, dated as of the 17th day of November, 1999, (the "Lease"),
between the Landlord and the Tenant, the Landlord leased to the Tenant certain
premises shown outlined in red on Schedule "C" attached to the Lease (the
"Premises"), being located at 302 Town Centre Boulevard, in the Town of
Markham, in the Province of Ontario (the "Building").

2.     The Landlord and the Tenant have agreed to amend the Lease in accordance
with the terms and conditions hereinafter set forth.

       NOW THEREFORE THIS AGREEMENT WITNESSES that for good and valuable
consideration (the receipt and sufficiency of which are hereby acknowledged),
the Parties do hereby agree as follows:

1.     The Parties hereby confirm that the foregoing recitals are true.

2.     The Lease is hereby amended as follows:

   (a) The Premises to be leased by the landlord to the Tenant shall be all
       rentable space on all of the office floors of the Building, comprised of
       approximately 58,000 square feet of rentable area and sections 1.1 and
       2.1 are amended accordingly. From and after the date hereof, all
       references to the Premises shall be deemed to be references to all
       rentable space in the office portion of the Building. Whenever in the
       Lease, there is a reference to "Proportionate Share", it is understood
       that the Tenant is responsible for 100% of the costs in respect of which
       the Proportionate Share calculation was previously being made.

   (b) Section 9.6(a) is amended to provide that the Tenant shall be entitled to
       have exclusive exterior signage rights on all sides of the top of the
       Building.

<PAGE>   2
                                      -2-

     (c)  Section 9.6(b) is amended to delete the following words: "The Landlord
          shall . . . are located."

     (d)  Section 9.6(d) of the Lease is hereby deleted, on the understanding
          that all of the Tenant's signage and directory boards shall be
          installed, maintained and removed in accordance with subsections (a),
          (b) and (c).

     (e)  Section 4 of Schedule "F" is hereby deleted.

     (f)  Section 6 of Schedule "F" is hereby amended to provide that the Tenant
          shall be entitled to the use of Two hundred and Fifty (250) parking
          spots in common with all other users thereof in the underground
          parking facilities and that the Tenant shall be entitled to up to
          thirty (30) of such spots being for the Tenant's exclusive use, as in
          Section 6 provided.

3.   The parties confirm that save as amended hereby the Lease remains
unamended. It is understood and agreed that all terms and expressions when used
in this Agreement, unless a contrary intention is expressed herein, have the
same meaning as they have in the Lease.

4.   This Agreement shall be effective from February 22, 2000.

5.   This Agreement shall enure to the benefit of and be binding upon the
Parties hereto and their respective successors and assigns.

6.   CONSTRUCTION OF PREMISES

     Clause 2.4(b)(ii) - Delete - April 1, 2000
                            Add - May 15, 2000

     Provided that all BH drawings have been received and approved no later than
     March 5, 2000 and all finishing materials are readily available.

     IN WITNESS WHEREOF the Parties hereto have signed and sealed this Agreement
as of the date and year first above written.

                                  )
                                  )    302 CITY CENTRE LIMITED
                                  )
                                  )
                                  )    Per:         /s/ Louis Reznick
                                  )         -----------------------------------
                                  )    I have authority to bind the Corporation
                                  )
                                  )    DELANO TECHNOLOGY
                                       CORPORATION
                                  )
                                  )
                                  )    Per:         /s/ David Lewis
                                  )         -----------------------------------
                                  )    I have authority to bind the Corporation<PAGE>   1
                                                                     EXHIBIT 4.2

<TABLE>
<S>                                               <C>                                  <C>          <C>
BLACKWATER VALLEY CORPORATE BUSINESS CENTRE       PO Box 39 5th Floor Abbey House      Telephone:   01252 382235
                                                  282 Famborough Road                  Switchboard: 01262 362200
                                                  Famborough Hanis                     Facsimile:   01252 362220
                                                  GU14 7YU
</TABLE>

Your ref:
Our ref:  RJC.KEK.Krug

A Firth Esq
Group Financial Director
Bradley International Holdings Limited
PO Box 20                                                  [NatWest Logo]
Beldray Road
BILSTON
West Midlands  WV14 7NF

18 November 1999

Dear Sirs

FACILITY LETTER FROM NATIONAL WESTMINSTER BANK PLC TO
KRUG INTERNATIONAL (UK) LIMITED AND BELDRAY LIMITED

We write with reference to the facility letter dated 8 December 1994 from us to
you and accepted by you on 7 March 1995 in respect of a facility of L1,500,000
for the purpose of refinancing the cost of purchase of land and the development
of the factory premises at Etruria Way, Mount Pleasant, Bilston, West Midlands
(the agreement between us constituted by your acceptance, the "Facility
Agreement").

Following the repayment of the loan borrowing in the name of Bradley
International Holdings Limited and the Group overdraft facility, we have
reviewed the covenants under which the Beldray Limited Medium Term Loan is made
available and this letter replaces the Supplemental Agreement dated 1 October
1997.

We therefore propose that the Facility Agreement shall be varied by the terms
of this letter. (The agreement constituted by your acceptance of this letter,
the "Supplemental Agreement").

With effect from the date of your acceptance of this Supplemental Agreement;

(i)      the existing clauses 17a and b (the "Old Clauses") in the Facility
         Agreement shall be deleted and the following Clause shall be
         substituted:

         "17      You agree to the following:-

                  (a)  You will not allow TANGIBLE NET WORTH to be less than
                       L2,500,000.

                  (b)  You will not allow TOTAL BORROWING to be more than 175%
                       of TANGIBLE NET WORTH.

                  (c)  You will not allow CASH GENERATED during each period
                       specified in Column A below to be less than the
                       percentage of DEBT SERVICE COSTS specified in Column B
                       below:

<TABLE>
<CAPTION>
                       Column A                                Column B
                       --------                                --------
                                                               (Minimum Level)
                       <S>                                     <C>
                       1 April 1999 to 31 March 2000           100%
                       and for each successive period
                       of 12 months thereafter                 110%
</TABLE>

<PAGE>   2
                                      -2-

                  (d)  You will not allow PBIT during each period specified in
                       Column A below to be less than the percentage of INTEREST
                       PAID specified in Column B below:

                       Column A                               Column B
                       --------                               --------
                                                              (Minimum Level)

                       Financial year to 31 March 2000
                       and for each successive period of
                       12 months thereafter                   325%

                  (e)  Each of you will not and each of you will procure that
                       no other member of the Group will, without our prior
                       written consent, (such consent not to be unreasonably
                       withheld) either create, extend, or increase any security
                       interest on the whole or any part of your or the Group's
                       undertaking, property or assets (including uncalled
                       capital) whether present or future except for security
                       interests arising in the ordinary course of trading.
                       Security interest includes (without limitation) liens,
                       pledges, charges, mortgages or other encumbrances.

                  (f)  You will provide us with such financial and other
                       information relating to you or to the Group as we may
                       reasonably require including (without limitation) copies
                       of:

                       (i)   the consolidated audited accounts of the Group
                             not later than 120 days after the end of the
                             financial year to which they relate;

                       (ii)  management information not later than 21 days
                             after the end of the quarter to which it relates
                             (to include profit and loss and balance sheet
                             information on a consolidated basis and for
                             individual members of the Group) together with
                             calculations in respect of financial covenants
                             (where appropriate);

                       (iii) published quarterly and annual accounts relating
                             to Krug International Corp. not later than 60 and
                             90 days respectively after the end of the quarter
                             or financial year to which they relate;

                       (iv)  management accounts in respect of you and your
                             Subsidiary Undertakings not later than 21 days
                             after the end of each month (to include profit and
                             loss and balance sheet information for individual
                             operating companies with supporting management
                             commentary and updated capital expenditure budges
                             as appropriate); and

                       (v)   annual budgets and projections for the
                             forthcoming 12 months (to include profit and loss,
                             balance sheet and cash flow forecasts) within 28
                             days of the end of the financial year, for
                             individual members of the Group and on a
                             consolidated basis.

                  In order to verify whether you are complying with these
                  covenants, we will refer to the consolidated, audited, interim
                  or management accounts of Krug International (UK) Limited as
                  we think appropriate. The financial covenant set out in
                  paragraph (c) shall be tested annually, that set out in
                  paragraph (d) shall be tested against interim and annual
                  accounts, and those set out in paragraphs (a) and (b) shall be
                  tested on an ongoing basis".

(ii)         the existing clause 17c shall be renumbered 17g.

The explanation of the words and phrases used in the new clauses 17a - 17f ("the
New Clauses") shall be as set out in the Appendix to this letter (and not, for
the avoidance of doubt as defined or explained in the Facility Agreement prior
to amendment by this Supplemental Agreement.) To the extent that any defined
terms in the Facility Agreement (prior to amendment by this Supplemental
Agreement) are used only in the Old Clauses, such terms shall be treated as
deleted.
<PAGE>   3
Further, with effect from the date of your acceptance of this Supplemental
Agreement, all references in the Facility Agreement to "this letter" and like
expressions shall be construed as including the Facility Agreement as amended by
this Supplemental Agreement and the Facility Agreement and the Supplemental
Agreement are to be read together and construed accordingly.

We agree that except where amended by the Supplemental Agreement, the terms,
rights and obligations of the Facility Agreement shall remain in full force and
effect.

This Supplemental Agreement shall be governed by and construed in accordance
with English law and we agree to submit to the jurisdiction of the English
courts.

We hereby accept the terms and conditions of this Supplemental Agreement.

Dated        18/11/99
      ---------------------------------------------

 /s/ Rob Cook
---------------------------------------------------
For and on behalf of NATIONAL WESTMINSTER BANK PLC

<PAGE>   4
FORM OF ACCEPTANCE
------------------

We hereby accept the terms and conditions of this Supplemental Agreement

Dated           21/1/2000
      ----------------------------------------------

  /s/ ROBERT M. THORNTON, JR.
----------------------------------------------------
For and on behalf of KRUG INTERNATIONAL (UK) LIMITED

<PAGE>   5
FORM OF ACCEPTANCE
------------------

We hereby accept the terms and conditions of this Supplemental Agreement

Dated        1/2/2000
     -------------------------------

  /s/ PAUL JONES
------------------------------------
For and on behalf of BELDRAY LIMITED

<PAGE>   6

                                      -6-

                                    APPENDIX

"BORROWINGS" means at any time the aggregate (without double counting) of the
following:-

(i)      the outstanding principal amount of any moneys borrowed by any member
         of the Group and any outstanding overdraft debit balance of any member
         of the Group, including for the avoidance of doubt, the outstanding
         principal amount of any hire purchase obligations;

(ii)     the outstanding principal amount of any debenture, bond, note, loan
         stock or other security of any member of the Group;

(iii)    the outstanding principal amount of the acceptance under any acceptance
         credit opened by a bank or other financial institution in favour of any
         member of the Group;

(iv)     the outstanding principal amount of all moneys owing to a member of the
         Group in connection with the sale or discounting of receivables
         (otherwise than on a non-recourse basis);

(v)      the outstanding principal amount of any indebtedness of any member of
         the Group arising from any advance or deferred payment agreements
         arranged primarily as a method of raising finance or financing the
         acquisition of the asset;

(vi)     the capitalised element of indebtedness of any member of the Group in
         respect of a finance lease entered into primarily as a method of
         raising finance or financing the acquisition of the asset leased;

(vii)    the outstanding principal amount of any indebtedness of any person or a
         type referred to in sub-paragraphs (i)-(vi) above which is the subject
         of a guarantee, indemnity and/or other form of assurance against
         financial loss by any member of the Group.

"CAPITAL EXPENDITURE" means, in respect of any financial period, the aggregate
expenditure of the Group on the purchase of fixed assets (as determined in
accordance with generally accepted United Kingdom accounting principles
(consistently applied)

"CASH GENERATED" means, in relation to the Group, the aggregate of:

(i)      PBIT; PLUS

(ii)     the aggregate net value of non cash movements (including, but not
         limited to, depreciation expense, other provisions and write backs of a
         non-cash nature); PLUS

(iii)    the aggregate value of any decrease in net working assets; PLUS

(iv)     the proceeds received by any member of the Group from the issue of new
         ordinary (or non-redeemable) equity capital;

LESS

(i)      tax paid; PLUS

(ii)     the aggregate value of any increase in net working assets; PLUS

(iii)    an amount equal to the Capital Expenditure by the Group (but not
         including the capital amounts of such expenditure funded by hire
         purchase or finance leases) during such period less an amount equal to
         the net proceeds of disposal of fixed assets during such period; PLUS
<PAGE>   7

                                      -7-

(iv)     investments, including acquisitions (and investments in/loans to Krug
         International Corp. other than of a non-cash nature); PLUS

(v)      dividends paid on shares of Krug International (UK) Limited (other than
         redeemable shares) or in respect of any minority interests; PLUS

(vi)     any extraordinary items.

-    NB  Cash generated to exclude the dividend of (pound)2.5m paid by Krug
     International (UK) Ltd on 5 October 1999 which relates to the repatriation
     of funds from the sale of Sowester Ltd.

"DEBT SERVICE COSTS" (OR "BORROWING COSTS") means, in respect of any financial
period:

(i)      All interest, commission, periodic fees, and other financial charges
         payable by any member of the Group during such period in relation to
         Borrowings (including the interest element payable under hire purchase
         contracts and finance leases); PLUS

(ii)     the aggregate amount of all dividend payments on ordinary and
         redeemable preference shares (and other redeemable shares) paid; PLUS

(iii)    the aggregate amount of all repayments of Borrowings made by any member
         of the Group or due from any member of the Group (including redemption
         of any redeemable preference shares) during such period.

-    NB  Debt service costs are to exclude:

         1.    All amounts relating to the medium term loan dated 2 October 1997
               of (pound)2.55m to Bradley International Holdings Ltd. The loan
               being secured by cash on deposit in the name of Krug
               International (UK) Ltd until 20 September 1999 when the loan was
               repaid. The debt service costs of this loan in the year to March
               2000 are (pound)290,772 made up of interest (pound)54,552 and
               capital repayments (pound)236,220.

         2.    The dividend of (pound)2.5m paid by Krug International (UK) Ltd
               on 5 October 1999 which related to the repatriation of funds from
               the sale of Sowester Ltd.

"GROUP" means Krug International (UK) Limited, Beldray Limited and any other
Subsidiary Undertakings from time to time of each of them taken as a whole
(and, save where the context does not admit, any of them individually); (if
there are no Subsidiary Undertakings for the time being, references to the
Group shall be taken to be references to you and the word "consolidated" in
relation to any accounts or other financial matters shall be ignored.)

"INTEREST PAID" means all interest, acceptance commission and all other
continuing, regular or periodic costs, charges and expenses in the nature of
interest (whether paid, payable or capitalised) including, for the avoidance of
doubt, finance charges relating to finance leases and hire purchase obligations.

"PBIT" means, in respect of any period, the profits of the Group for that
period before the deduction of Interest Paid and corporation tax on the income
of the Group payable in respect of any financial year:

(i)      excluding extraordinary items under FRS 3;

(ii)     excluding interest of whatever nature received by the Group;

(iii)    after deduction of any management charges levied by Krug International
         Corp. or its subsidiaries or affiliates;

<PAGE>   8
-  NB   Interest paid will exclude all amounts relating to the medium term loan
   dated 2 October 1997 of (pound)2.55m to Bradley International Holdings Ltd.
   The loan being secured on deposit in the name of Krug International (UK) Ltd
   until 20 September 1999 when the loan was repaid. The interest charged on
   this loan in the year to March 2000 is (pound)54,552.

"SUBSIDIARY UNDERTAKING" means a subsidiary undertaking (as defined by S.258
of the Companies Act 1985).

"TANGIBLE NET WORTH" means at any time the aggregate of:-

(i)      the amount paid up or credited as paid up on the issued share capital
         of Krug International (UK) Limited; and

(ii)     the amount standing to the credit of the consolidated capital and
         revenue reserves of the Group;

based on the Balance Sheet but adjusted by:-

(1)      adding any amount standing to the credit of the profit and loss account
         for the Group for the period ending on the date of the Balance Sheet,
         to the extent not included in sub-paragraph (ii) above and to the
         extent the amount is not attributable to any dividend or other
         distribution declared, recommended or made by any member of the Group;

(2)      deducting any amount standing to the debt of the profit and loss
         account for the Group the period ending on the date of the Balance
         Sheet;

(3)      deducting any amount attributable to goodwill or any other intangible
         asset;

(4)      excluding any amount attributable to deferred taxation;

(5)      excluding any amount attributable to minority interests; and

(6)      deducting amounts attributable to the investment in Krug International
         Corp. or owed to the Group by Krug International Corp. by way of inter
         company loan or other Borrowing instrument.

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