Document:

REAFFIRMATION AND RATIFICATION AGREEMENT

                                                              February 28, 2007
Laurus Master Fund, Ltd.
c/o Laurus Capital Management, LLC
825 Third Avenue
New York, New York 10022

Ladies and Gentlemen:

                  Reference is made to (a) the Security Agreement dated as of
June 27, 2005 by and among Thinkpath, Inc., an Ontario corporation
("THINKPATH"), Thinkpath, Inc., an Ohio corporation ("THINKPATH (OH)"),
Thinkpath of Michigan Inc., a Michigan corporation ("THINKPATH (MI)"), and
Thinkpath Technical Services Inc., a Ohio corporation ("TECHNICAL SERVICES") and
Laurus Master Fund, Ltd., a Cayman Islands company ("LAURUS") (as amended,
modified and/or supplemented from time to time, the "JUNE 2005 SECURITY
AGREEMENT"), (b) the Ontario Subsidiary Guaranty, dated as of June 27, 2005 made
by Systemsearch Consulting Services Inc., an Ontario corporation
("SYSTEMSEARCH"), Thinkpath Training Inc., an Ontario corporation ("THINKPATH
TRAINING (ON)"), Tidalbeach Inc., an Ontario corporation ("TIDALBEACH"),
International Career Specialists Inc., an Ontario corporation ("ICS") and TBM
Technologies Inc., an Ontario Corporation ("TBM") in favor of Laurus (as
amended, modified or supplemented from time to time, the "ONTARIO SUBSIDIARY
GUARANTY"), (c) the Ontario Master Security Agreement dated as of June 27, 2005
made by Thinkpath Training (ON), Tidalbeach, ICS and TBM in favor of Laurus (as
amended, modified or supplemented from time to time, the "ONTARIO MASTER
SECURITY AGREEMENT"), (d) the US Subsidiary Guaranty, dated as of June 27, 2005
made by Thinkpath Training (US) Inc., a New York corporation ("THINKPATH
TRAINING (NY)"), Microtech Professional Inc., a Massachusetts corporation
("MICROTECH") and E-wink, Inc., a New York corporation ("EWINK") in favor of
Laurus (as amended, modified or supplemented from time to time, the "US
SUBSIDIARY GUARANTY"), (e) the US Master Security Agreement dated as of June 27,
2005 made by Thinkpath Training (NY), Microtech and Ewink in favor of Laurus (as
amended, modified or supplemented from time to time, the "US MASTER SECURITY
AGREEMENT"), (f) the Stock Pledge Agreement dated as of June 27, 2005 made by
Thinkpath, Thinkpath (OH), Thinkpath (MI), Technical Services, Systemsearch,
Thinkpath Training (ON), Tidalbeach, ICS, TBM, Thinkpath Training (NY),
Microtech and Ewink in favor of Laurus (as amended, modified or supplemented
from time to time, the "STOCK PLEDGE AGREEMENT") and (g) the Security Agreement
dated as of June 30, 2006 by and among Thinkpath, Thinkpath (OH), Thinkpath
(MI), Technical Services and such other subsidiaries of Thinkpath which
hereafter become a party thereto (together with Thinkpath, Thinkpath (OH),
Thinkpath (MI) and Technical Services, the "COMPANIES" and, each a "COMPANY"),
and Laurus (as amended, modified and/or supplemented from time to time, the
"JUNE 2006 SECURITY AGREEMENT") (the June 2005 Security Agreement, the Ontario
Subsidiary Guaranty, the Ontario Master Security Agreement, the US Subsidiary
Guaranty, the US Master Security Agreement, the Stock Pledge Agreement and the
June 2006 Security Agreement, collectively, the "EXISTING SECURITY AND GUARANTY
AGREEMENTS"). For purposes hereof, the defined term "CREDIT PARTY" shall mean
individually and collectively, each of Thinkpath, Thinkpath (OH), Thinkpath
(MI), Technical Services, Systemsearch, Thinkpath Training (ON), Tidalbeach,
ICS, TBM and Thinkpath Training (NY).

<PAGE>

         WHEREAS, Thinkpath, Thinkpath (OH), Thinkpath (MI), Technical Services
(collectively, the "BORROWERS") and Laurus have agreed to increase the stated
amount of that certain Secured Revolving Note, made by the Borrowers as of June
30, 2006, jointly and severally, in favor of Laurus (as amended, modified or
supplemented from time to time) from $3,500,000 to $3,650,000 (the "INCREASED
REVOLVING NOTE"); and

         NOW THEREFORE, in consideration of the foregoing premises and for other
good and valuable consideration , the receipt and sufficiency of which is hereby
acknowledged, the parties hereto agree as follows:

         1. REAFFIRMATION AND RATIFICATION. To induce Laurus to agree to
increase of the stated amount set forth in the Increased Revolving Note, each
Credit Party hereby jointly and severally:

         (a) represents and warrants to Laurus that it has reviewed and approved
the terms and provisions of the Increased Revolving Note and the documents,
instruments and agreements entered into in connection therewith;

         (b) acknowledges, ratifies and confirms that all indebtedness incurred
by, and all other obligations and liabilities of, each Company under the
Increased Revolving Note are (i) "Obligations" under, and as defined in the June
2005 Security Agreement, (ii) "Obligations" under, and as defined in the Ontario
Subsidiary Guaranty, (iii) "Obligations" under, and as defined in, the Ontario
Master Security Agreement, (iv) "Obligations" under, and as defined in the US
Subsidiary Guaranty, (v) "Obligations" under, and as defined in, the US Master
Security Agreement, (vi) "Obligations" under, and as defined in, the Stock
Pledge Agreement and (vii) "Obligations" under, and as defined in the June 2006
Security Agreement;

         (c) acknowledges, ratifies and confirms that Increased Revolving Note
is (x) an "Ancillary Agreement" under, and as defined in, each of the June 2005
Security Agreement and June 2006 Security Agreement and (y) a "Document" under,
and as defined in, each of the Ontario Subsidiary Guaranty, the Ontario Master
Security Agreement, the US Subsidiary Guaranty, the US Master Security Agreement
and the Stock Pledge Agreement;

         (d) acknowledges, ratifies and confirms that all of the terms,
conditions, representations and covenants contained in the Existing Security and
Guaranty Agreements are in full force and effect and shall remain in full force
and effect after giving effect to the execution and effectiveness of the
Increased Revolving Note;

         (e) represents and warrants that no offsets, counterclaims or defenses
exist as of the date hereof with respect to any of the undersigned's obligations
under any Existing Security and Guaranty Agreement or the Increased Revolving
Note and the Existing Security and Guaranty Agreements shall continue to
constitute valid security for the obligations of each Credit Party to Laurus
under and pursuant to the Existing Security and Guaranty Agreements and the
Increased Revolving Note; and

                                      -2-
<PAGE>

         (f) acknowledges, ratifies and confirms the grant by such Credit Party
to Laurus of a security interest in the assets of (including the equity
interests owned by) such Credit Party, as more specifically set forth in the
Existing Security and Guaranty Agreements and that each Existing Security and
Guaranty Agreement constitutes legal, valid and binding obligations of each
Credit Party party thereto, enforceable against each such Credit Party in
accordance with their terms, subject to applicable bankruptcy, insolvency,
reorganization and other laws of general application limiting the enforceability
of creditors' rights.

         2. MISCELLANEOUS. This Reaffirmation shall be binding upon the parties
hereto and their respective successors and permitted assigns and shall inure to
the benefit of and be enforceable by each of the parties hereto and its
successors and permitted assigns. THIS REAFFIRMATION SHALL BE CONSTRUED AND
ENFORCED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE STATE OF NEW YORK.
This Reaffirmation may be executed in any number of counterparts, each of which
shall be an original, but all of which shall constitute one instrument. In the
event that any provision of this Reaffirmation shall prove to be invalid or
unenforceable, such provision shall be deemed to be severable from the other
provisions of this Reaffirmation which shall remain binding on all parties
hereto.

         5. ANCILLARY AGREEMENTS. From and after the execution and delivery
hereof by the parties hereto, this Reaffirmation shall constitute an "ANCILLARY
AGREEMENT" for all purposes of the Loan Documents.

            [The remainder of this page is intentionally left blank]

                                      -3-
<PAGE>

                                      Very truly yours,

                                      THINKPATH INC., AN ONTARIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      THINKPATH INC., AN OHIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      THINKPATH OF MICHIGAN INC.,
                                      A MICHIGAN CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      THINKPATH TECHNICAL SERVICES INC.,
                                      AN OHIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      -4-
<PAGE>

                                      SYSTEMSEARCH CONSULTING SERVICES INC.,
                                      AN ONTARIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      THINKPATH TRAINING INC.,
                                      AN ONTARIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      TIDALBEACH INC., AN ONTARIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      THINKPATH TRAINING (US) INC.,
                                      A NEW YORK CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      -5-
<PAGE>

                                      INTERNATIONAL CAREER SPECIALISTS INC.,
                                      AN ONTARIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      TBM TECHNOLOGIES INC.,
                                      AN ONTARIO CORPORATION

                                      BY:
                                      NAME:
                                      TITLE:
                                      ADDRESS:

                                      -6-
<PAGE>

ACKNOWLEDGED AND AGREED TO BY:

LAURUS MASTER FUND, LTD.

BY: /s/ EUGENE GRIN
    --------------------
    NAME:  Eugene Grin
    TITLE: Director

                                      -7-SECOND AMENDED AND RESTATED PROMISSORY NOTE
 

 

 

	
            $317,500
 	
            March 2, 2007
 

 

 

FOR VALUE RECEIVED, the undersigned, Siena Technologies, Inc. (f/k/a Network Installation Corp.) and Kelley Communication Company, Inc. (together, the "Makers"), promise to pay to the order of Robert Unger (the “Holder”), 1899 Hillsboro Drive, Henderson Nevada 89014, or at such other place as the Holder hereof may from time to time designate in writing, the principal amount of $317,500 together with interest thereon from the date hereof at the rate of seven percent (7%) per annum (the “Note”).  Subject to the terms of this Note with respect to payments that may be due in connection with a New Financing (defined below) or from Excess Earnings (defined below), this Note shall be payable in a single payment of the entire outstanding principal under this Note, plus all accrued interest, on September 20, 2008.
The amortization schedule for this Note is attached as Exhibit A.

 

	
             
 	
            This Note shall be effective as of December 31, 2006.  
 

 

This Note amends and restates and replaces in its entirety the Amended and Restated Promissory Note originally issued August 14, 2006 and effective June 30, 2006 by Makers in favor of the Holder in the face amount of $317,500 (the “First Amended and Restated Promissory Note”).  This Note is not executed and delivered in payment of the indebtedness evidenced by the First Amended and Restated Promissory Note, but to evidence the amended terms of that indebtedness.  The making and delivery of this Note is not a novation.  By acceptance of this Note, Holder hereby (i) waives any default under the First Amended and Restated Promissory Note, and (ii) waives any penalty, premium or interest other than that shown on Exhibit A that may have accrued under the First Amended and Restated Promissory Note.

So long as any amounts are due and owing under this Note, if Makers borrow funds from a lender other than Dutchess Private Equities Fund, LP, Dutchess Private Equity Fund II, LP or Dutchess Advisors Ltd. (collectively “Dutchess”)  or raise capital from the sale of stock of Siena to a person or entity other than Dutchess (a “New Financing”), and if the net proceeds of such loan or investment (after the payment of all fees and expenses associated with such loan or investment) exceed $4,000,000 (the “Threshold Amount”), then within 30 days after receipt (the “New Financing Payment Date”) of such proceeds Makers shall pay to Holder an amount equal to 20% of the excess of the proceeds over $4,000,000, up to the unpaid balance of the indebtedness, with accrued interest, owed to Holder, as a principal prepayment of such indebtedness.  Makers and Holder
acknowledge that to date, Siena has raised a total of $2,157,000.00 which shall be applied to the $4,000,000 amount set forth in this section.

 

So long as any amounts are due and owing under this Note, if Makers’ earnings on a consolidated basis during any calendar year exceed $1,000,000 (i) before interest, taxes, depreciation and amortization, but (ii) after deduction of all principal and interest payments on outstanding debts, other than prepayments to Dutchess mandated by paragraphs 4 and 5 of the Second Loan Restructure Agreement dated February 5, 2007 between Makers and Dutchess (the “Excess Earnings”), Makers will pay to Holder an amount equal to 13% of the Excess Earnings, up to the unpaid balance of the indebtedness, with accrued interest, as a principal prepayment of such indebtedness.  The determination of Excess Earnings shall be calculated in accordance with Generally Accepted Accounting Principles applied in accordance with the historical practices of Makers.  Any payment of Excess Earnings shall be
due and payable within ten business days after the filing of Siena’s Annual Report on Form 10-KSB with the Securities and Exchange Commission.

This Note may be prepaid in whole or in part at any time without premium or penalty.  Any payment made hereunder shall be applied first to accrued interest and then to principal.

 

Any amount not paid when due hereunder shall bear interest at a rate equal to the lesser of (i) 10% per annum, or (ii) the maximum amount that may be collected under law, until paid.  

 

The failure of the Holder hereof to exercise any of the remedies or options set forth in this Note, or in any instrument now or hereafter evidencing or securing the indebtedness evidenced hereby upon the occurrence of one or more events of default shall not constitute a waiver of the right to exercise any such remedy or option or any other remedy or option at any subsequent time in respect to the same or any other event of default.  The acceptance by the Holder hereof of any payment which is less than the total amount due and payable at the time of such payment shall not constitute a waiver of the right to exercise any of the foregoing remedies or options at that time or at any subsequent time or nullify any prior exercise of any such remedy or option.

 

As often as this Note is placed in the hands of an attorney for collection or to defend or enforce any of the Holders' rights hereunder, the Makers will pay to the Holder hereof his reasonable attorneys' fees, together with all court costs and other expenses incurred in connection therewith.

 

The Makers, endorsers, sureties, guarantors, and all other persons who are or may become liable for all or any part of the indebtedness evidenced hereby waive presentment, protest, and notice of dishonor.

 

 

                 Notwithstanding any provisions herein to the contrary, the total liability for payments in the nature of interest shall not exceed the limits imposed by laws of the State of Nevada relating to maximum charges of interest, and Holder shall not be entitled to receive, collect, or apply, as interest on the indebtedness evidenced hereby, any amount in excess of the maximum legal rate of interest permitted to be charged by applicable law.  If the Holder ever receives, collects, or applies as interest, any such excess, the amount that would be excessive interest shall be applied to reduce the unpaid principal balance of the indebtedness evidenced hereby, and if the unpaid principal balance of such indebtedness is paid in full, any remaining excess shall be immediately paid to the Makers.

 

IN WITNESS WHEREOF, the Makers have executed this Note the day and year first written above.

 

Siena Technologies, Inc.

	
             
 	
            /s/  Christopher G. Pizzo
 

	
             
 	
            By:
 

 

 

Kelley Communication Company, Inc.

	
             
 	
            /s/  James Michael Kelley
 

	
             
 	
            By:
 

 

 

The undersigned hereby acknowledges and agrees to the terms of this Note, as of the date first set forth above:

 

“Holder”

 

/s/  Robert Unger

Robert Unger

 

	
            EXHIBIT A
 
	
             
 	
             
 	
             
 	
             
 	
             
 
	
            Siena Technologies, Inc.
 
	
            Note Payable Robert Unger
 
	
            As of March ___, 2007 - Effective Dec 31, 2006
 
	
             
 	
             
 	
             
 	
             
 	
             
 
	
             
 	
             
 	
             
 	
             
 	
            Interest
 
	
             
 	
            Payment
 	
            Interest
 	
             
 	
            7.00%
 
	
            Balance due
 	
             
 	
             
 	
            317,500.00 
 	
             
 
	
            20-Aug-06
 	
             
 	
            1,852.08 
 	
            319,352.08 
 	
             
 
	
            20-Sep-06
 	
             
 	
            1,862.89 
 	
            321,214.97 
 	
             
 
	
            20-Oct-06
 	
             
 	
            1,873.75 
 	
            323,088.72 
 	
             
 
	
            20-Nov-06
 	
             
 	
            1,884.68 
 	
            324,973.41 
 	
             
 
	
            20-Dec-06
 	
             
 	
            1,895.68 
 	
            326,869.09 
 	
             
 
	
            20-Jan-07
 	
             
 	
            1,906.74 
 	
            328,775.82 
 	
             
 
	
            20-Feb-07
 	
             
 	
            1,917.86 
 	
            330,693.68 
 	
             
 
	
            20-Mar-07
 	
             
 	
            1,929.05 
 	
            332,622.73 
 	
             
 
	
            20-Apr-07
 	
             
 	
            1,940.30 
 	
            334,563.03 
 	
             
 
	
            20-May-07
 	
             
 	
            1,951.62 
 	
            336,514.65 
 	
             
 
	
            20-Jun-07
 	
             
 	
            1,963.00 
 	
            338,477.65 
 	
             
 
	
            20-Jul-07
 	
             
 	
            1,974.45 
 	
            340,452.10 
 	
             
 
	
            20-Aug-07
 	
             
 	
            1,985.97 
 	
            342,438.07 
 	
             
 
	
            20-Sep-07
 	
             
 	
            1,997.56 
 	
            344,435.63 
 	
             
 
	
            20-Oct-07
 	
             
 	
            2,009.21 
 	
            346,444.83 
 	
             
 
	
            20-Nov-07
 	
             
 	
            2,020.93 
 	
            348,465.76 
 	
             
 
	
            20-Dec-07
 	
             
 	
            2,032.72 
 	
            350,498.48 
 	
             
 
	
            20-Jan-08
 	
             
 	
            2,044.57 
 	
            352,543.05 
 	
             
 
	
            20-Feb-08
 	
             
 	
            2,056.50 
 	
            354,599.56 
 	
             
 
	
            20-Mar-08
 	
             
 	
            2,068.50 
 	
            356,668.05 
 	
             
 
	
            20-Apr-08
 	
             
 	
            2,080.56 
 	
            358,748.62 
 	
             
 
	
            20-May-08
 	
             
 	
            2,092.70 
 	
            360,841.32 
 	
             
 
	
            20-Jun-08
 	
             
 	
            2,104.91 
 	
            362,946.22 
 	
             
 
	
            20-Jul-08
 	
             
 	
            2,117.19 
 	
            365,063.41 
 	
             
 
	
            20-Aug-08
 	
             
 	
            2,129.54 
 	
            367,192.95 
 	
             
 
	
            20-Sep-08
 	
            369,334.91 
 	
            2,141.96 
 	
            (0.00)

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