Document:

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                                                                    EXHIBIT 4.27

NEITHER THIS DEBENTURE NOR THE SECURITIES ISSUABLE UPON CONVERSION HEREOF HAVE
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR THE
SECURITIES LAWS OF ANY STATE AND SUCH SECURITIES MAY NOT BE SOLD OR OTHERWISE
TRANSFERRED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH ACT
AND LAWS UNLESS INTEGRATED BUSINESS SYSTEMS AND SERVICES, INC. RECEIVES AN
OPINION OF COUNSEL REASONABLY ACCEPTABLE TO IT THAT SUCH REGISTRATION IS NOT
REQUIRED.

                 AMENDED AND RESTATED CLASS B SECURED DEBENTURE

                                                                 October 1, 2003

THIS INSTRUMENT AMENDS AND RESTATES THAT CERTAIN CLASS B SECURED CONVERTIBLE
DEBENTURE, DATED DECEMBER 31, 2001, AND REPLACES SAID CLASS B SECURED
CONVERTIBLE DEBENTURE IN ITS ENTIRETY.

                  FOR VALUE RECEIVED, INTEGRATED BUSINESS SYSTEMS AND SERVICES,
INC., a South Carolina corporation (the "COMPANY"), promises to pay to the order
of IBSS Class B Investors, LLC, a Michigan limited liability company (successor
to IBSS Class B Investors, a Michigan co-partnership) IBSS Class B Investors, a
Michigan co-partnership, whose address is c/o Seyburn, Kahn, Ginn, Bess and
Serlin, P.C., 2000 Town Center, Suite 1500, Southfield, Michigan 48075,
Attention: Bruce H. Seyburn, Esq. ("PAYEE"; Payee and any subsequent holder(s)
hereof are individually and collectively referred to as the "HOLDER"), the sum
of Two Million Thirty Three Thousand Three Hundred Ninety Nine and 00/100
Dollars ($2,033,399), together with interest thereon, all as hereinafter
provided.

                  1.       Issue. This Debenture is a duly authorized issue of
the Company (the "DEBENTURE"") in the aggregate principal amount of $2,033,399.

                  1A.      As of the date hereof, the outstanding principal
balance of this Debenture is $1,427,399, and accrued interest is $308,000.80.

                  2.       Interest and Principal Payments and Prepayments.

                  2.1      Principal. The outstanding principal amount hereunder
shall be paid on the earlier to occur of: (i) December 31, 2006; and, (ii) the
date of the closing of a Liquidity Event (as and to the extent defined below)
(the "MATURITY DATE").

                  In the event the Company obtains further investor funding at
any time after January 31, 2004 (the "Completion Date") (whether in exchange for
promissory notes, convertible debentures, warrants, equity securities or
instruments of any nature whatsoever) (a "Liquidity Event"), promptly following
the closing of such Liquidity Event, the Company shall pay to the Holder of the
Company's Class A Secured Debenture (the "Class A Debenture holder") and the
holder of the Company's Class B Secured Debenture (the "Class B Debenture
holder") in priority as between the Class A Secured Debenture and Class B
Secured Debenture as set forth in an Inter-Creditor Agreement dated December 31,
2001) the following amounts:

                  (a)      Out of the first One Million ($1,000,000) Dollars of
                           such funding (computed on a cumulative basis, taking
                           into account all rounds of funding completed after
                           the Completion Date zero (0%) percent shall be paid
                           to the Class A and Class B

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                           Debenture holders;

                  (b)      Out of the second One Million Dollars (i.e., between
                           $1 million and $2 million) of such funding (computed
                           on a cumulative basis, taking into account all rounds
                           of funding completed after the Completion Date ), an
                           aggregate thirty (30%) percent shall be paid to the
                           Class A and Class B Debenture holders, and applied
                           against the accrued but unpaid interest and the
                           unpaid principal hereof;

                  (c)      Out of the third One Million Dollars (i.e., between
                           $2 million and $3 million) (computed on a cumulative
                           basis, taking into account all rounds of funding
                           completed after the Completion Date ), an aggregate
                           forty (40%) percent shall be paid to the Class A and
                           Class B Debenture holders, and applied against the
                           accrued but unpaid interest and the unpaid principal
                           hereof; and

                  (d)      Out of all funding in excess of Three Million Dollars
                           (computed on a cumulative basis, taking into account
                           all rounds of funding completed after the Completion
                           Date ), an aggregate fifty (50%) percent shall be
                           paid to the Class A and Class B Debenture holders,
                           and applied against the accrued but unpaid interest
                           and the unpaid principal hereof.

                  2.2      Interest. From the date hereof to and including the
date that this Debenture is paid in full, the unpaid principal amount of this
Debenture shall bear simple interest at a rate per annum equal to the Interest
Rate (defined below), with such rate computed based on a year of 360 days;
provided, however, that during any period of default hereunder, the foregoing
rate shall be increased to twenty-two percent (22.0%). Interest on the unpaid
principal amount of this Debenture shall accrue from the date hereof and be
payable in arrears on January 1, 2003 , and on the Maturity Date.

                           Interest Rate. The Interest Rate under this Debenture
shall be equal to nine percent (9%) per annum during the first ninety (90) days
after the date hereof. During each consecutive ninety-day interval thereafter,
the Interest Rate shall increase by one (1.00) percentage point (e.g., during
the second ninety-day period hereunder, interest shall accrue at 10.0% per
annum, during the third ninety-day period hereunder interest shall accrue at
11.0% per annum, etc.). Notwithstanding anything herein to the contrary, the
Interest Rate shall not exceed twenty-two percent (22.0%) per annum (the default
rate of interest).

                           Notwithstanding the foregoing, provided that there
occurs no Default under the Amended And Restated Class A Secured Debenture or
this Debenture, during the period beginning on October 1, 2003 and ending on the
Maturity Date, then no interest shall accrue on the unpaid principal hereof
during such period.

                  2.3      Payment in U.S. Dollars. All payments of principal
and interest shall be made in lawful money of the United States of America
except as provided in Section 4 and shall be made to Holder at Holder's address
set forth in Section 9.2 or at such other place as Holder may designate to the
Company in writing.

                  2.4      Maximum Rate of Interest. Regardless of any other
provision of this Debenture or in any documents otherwise relating hereto, no
Holder of this Debenture shall ever be entitled to receive, collect or apply as
interest on the principal of this Debenture any amount in excess of the maximum
rate of interest allowable under applicable law, and if any Holder ever
receives, collects or applies as interest hereon any such excess, such amount
that would be excessive interest shall be

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deemed as partial prepayment of principal and shall be treated as such, and if
the principal is paid in full, any remaining excess shall forthwith be paid to
the Company. In determining whether the interest paid or payable on the
principal outstanding under this Debenture exceeds the maximum rate of interest
allowable under applicable law, the Company and Holder shall, to the maximum
extent permitted under applicable law, (a) characterize any non-principal
payment as an expense, fee or premium rather than as interest, (b) exclude
voluntary prepayments and the effects thereof and (c) spread the total amount of
interest throughout the entire contemplated term hereof; provided, that if the
indebtedness evidenced hereby is paid and performed in full prior to the end of
the full contemplated term thereof, and if the interest received for the actual
period of existence thereof exceeds the maximum rate of interest allowable under
applicable law, Holder shall either apply or refund to the Company the amount of
such excess as herein provided, and in such event, Holder shall not be subject
to any penalties provided by any laws for contracting for, charging, or
receiving interest in excess of the maximum rate of interest allowable under
applicable law.

                  2.5      Prepayment. This Debenture may be prepaid prior to
maturity, in whole or in part, at the election of the Company without the prior
written consent of Holder.

                  3.       Lost, Stolen, Destroyed or Mutilated Debenture. Upon
receipt of evidence satisfactory to the Company of the loss, theft, destruction
or mutilation of this Debenture and, in case of any such loss, theft or
destruction, upon receipt of indemnity reasonably satisfactory to the Company
or, in the case of any such mutilation, upon surrender and cancellation of this
Debenture, the Company will make and deliver, in lieu of such lost, stolen,
destroyed or mutilated Debenture, a new Debenture bearing interest at the rate
set forth herein of like tenor and unpaid principal amount of this Debenture so
lost, stolen, destroyed or mutilated.

                  4.       [Reserved].

                  5.       [Reserved].

                  6.       [Reserved].

                  7.       [Reserved].

                  8.       Defaults. The following events are hereby defined as
"DEFAULTS" for all purposes of this Debenture (whatever the reason for the
occurrence thereof and whether such event shall be voluntary or involuntary or
come about or be effected by operation of law or pursuant to or in compliance
with any judgment, order or decree of any court or any order, rule or regulation
of any governmental or administrative body):

                           (a)      The Company shall fail to pay any amount
(whether principal or interest) when due under this Debenture and such failure
continues for fifteen (15) days after the due date;

                           (b)      The Company shall fail to perform or observe
any of the other covenants or agreements contained in this Debenture and such
failure shall not have been remedied or cured within thirty (30) days after
written notice thereof, requesting the same to be remedied, shall have been
received by the Company from Holder;

                           (c)      The Company shall institute proceedings for
an order for relief, or shall consent to the institution of such a proceeding
against it, or shall file a petition or consent seeking reorganization or
arrangement under, the federal bankruptcy laws, or shall consent to the
appointment of

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a receiver or trustee or assignee in bankruptcy of it or its property, or shall
make an assignment for the benefit of creditors, or shall cease to operate in
the ordinary course of its business; or

                           (d)      An involuntary order for relief under the
federal bankruptcy laws shall have been entered or a decree or order of a court
having jurisdiction in the premises shall have been entered approving as
properly filed a petition seeking reorganization of the Company under the
federal bankruptcy laws or any other similar applicable Federal or state laws,
and such decree or order shall have continued undischarged or unstayed for a
period of ninety (90) days; or a decree or order of a court having jurisdiction
in the premises for the appointment of a receiver or trustee or assignee in
bankruptcy or insolvency of the Company or of substantially all of the property
of the Company or for the sequestration of substantially all of the property of
the Company, or for the winding up or liquidation in insolvency or bankruptcy of
its affairs, shall have been entered, and such decree or order shall have
remained in force undischarged and unstayed for a period of ninety (90) days.

                           (e)      The Company commits a default under the
Investment Agreement between the parties executed contemporaneously herewith.

                  If one or more Defaults shall have occurred and be continuing,
Holder may at Holder's option by written notice to the Company declare all
outstanding principal and accrued interest under this Debenture to be due and
payable, and upon such declaration this Debenture shall thereupon become
forthwith due and payable, together with interest accrued hereon. Upon such
declaration, Holder may thereupon proceed to protect and enforce its rights
either by suit in equity or by action of law or by other appropriate
proceedings, whether for specific performance of any covenant or agreement
contained herein or proceed to enforce the payment of this Debenture or to
enforce any other legal or equitable right of Holder.

                  9.       Security. This Debenture is secured by, and the
Company hereby grants to Holder , a lien on the Company's accounts receivable
(whether now owned or hereafter acquired) and Synapse software (together with
all documentation, user manuals and user codes attributable thereto), as more
fully described in the Security Agreement between the parties of even date
herewith. Company hereby authorizes Holder to file a UCC-1 Financing Statement
with all appropriate government office(s) in order to perfect this security
interest, and shall enter into a Security Agreement with Holder contemporaneous
herewith. Holder agrees to subordinate its lien in Company's accounts receivable
to the lien of any current or future institutional lenders (or comparable
business entities) providing loans to the Company, and upon request Payee shall
sign and deliver to such lenders subordination agreements in a form satisfactory
to such lenders. In addition, Payee agrees to enter into intercreditor
agreements with the holders of other secured debentures issued by the Company,
to the effect that such other debenture holders shall have equal priority with
Holder in the Company's accounts receivable (now owned or hereafter acquired)
and Synapse software (together with all documentation, user manuals and user
codes attributable thereto) utilized to secure such other debenture holders'
indebtedness.

                  10.      Miscellaneous.

                  10.1     Amendment. The Company may amend or supplement this
Debenture only with the written consent of Holder. Holder may waive (either
generally or in a particular instance and either retroactively or prospectively)
compliance by the Company with any provision of this Debenture.

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                  10.2     Assignment; Notices. Without the prior written
consent of the Company, Holder may not sell, assign, negotiate or otherwise
transfer, in whole or in part, this Debenture, or grant any participation or
other right or interest in, any or all of his rights hereunder. Any purported
sale, assignment, negotiation or other transfer of this Debenture by Holder
shall be null and void and of no force or effect whatsoever.

                           (i)      If to Holder, to:

                                    (at Holder's address shown above)

                           (ii)     If to the Company to:

                                    Integrated Business Systems and Services,
                                    Inc.
                                    1601 Shop Road, Suite E
                                    Columbia, South Carolina 29201
                                    Attention: George Mendenhall, Chief
                                    Executive Officer

                           (iii)    If to any other holder other than Payee, to
                           such address as may have been designated with the
                           foregoing.

                  The Company or Holder may designate a different address by
notice given in accordance with the foregoing.

                  10.3     Collection Fees. In the event this Debenture is
placed in the hands of an attorney for collection or for enforcement, the
Company agrees to pay all reasonable attorneys' fees incurred by Holder (based
on regular billing rates and time actually spent) and all court and other
reasonable costs of any good faith collection efforts.

                  10.4     Liability of Affiliates. A parent corporation,
subsidiary, affiliate, director, officer, employee or other shareholder, as
such, of the Company shall not have liability for any obligations of the Company
under this Debenture or for any claim based on, in respect of or by reason of
such obligations or their creation. Each Holder by accepting this Debenture
waives and releases all such liability.

                  10.5     Governing Law. This Debenture and the rights and
obligations of the parties hereunder shall be governed by, and construed and
interpreted in accordance with, the laws of the State of Michigan (without
regard to principles of conflicts of laws) and applicable Federal law.

                  11.      Consent to Jurisdiction. The Company hereby
irrevocably submits to the jurisdiction of the state courts of the State of
Michigan and any United States federal court sitting in the State of Michigan in
any action or proceeding arising out of or relating to this Debenture or any
other agreement or transaction contemplated hereby, and the Company hereby
irrevocably agrees that all claims in respect of such action or proceeding may
be heard and determined in any such state or federal court. The Company hereby
irrevocably waives, to the fullest extent it may effectively do so, the defense
of an inconvenient forum to the maintenance of such action or proceeding. The
Company hereby irrevocably consents to the service of any and all process in any
such action or proceeding at its address set forth on the first page hereof or
any place of business of the Company in the State of Michigan. Nothing in this
Section shall affect the right of the holder of this Debenture to serve legal
process in any other manner permitted by law or affect the right of the holder
to bring any action or proceeding against the other party or its property in
courts of any other jurisdictions.

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                  IN WITNESS WHEREOF, the Company has caused this Debenture to
be executed in its corporate name by the undersigned officer, thereunto duly
authorized, to be effective as of the date first set forth above.

                                              INTEGRATED BUSINESS
                                              SYSTEMS AND SERVICES, INC.

                                              By: /s/ George E. Mendenhall
                                                  ------------------------------
                                                      GEORGE E. MENDENHALL
                                                      CHIEF EXECUTIVE OFFICER

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Accepted and Agreed by Holder effective as of the date first set forth above:

________________________________
Holder

________________________________
Signature (if individual)

If Holder is an entity:

By: /s/ Bruce H. Seyburn
    -----------------------------

Its: Agent

                                       7<PAGE>

                                                                    EXHIBIT 4.28

                                 October 1, 2003

Integrated Business Systems and Services, Inc.
Attn: George Mendenhall, CEO
1601 Shop Road, Suite E
Columbia, South Carolina 29201

         RE:      LETTER OF INTENT: IBSS Class A Investors, LLC; IBSS Class B
                  Investors, LLC December 31, 2001 Restructuring: Amendments to
                  Conversion Price and Expiration Dates

Gentlemen:

         As you know, the undersigned IBSS Class A Investors, LLC and IBSS Class
B Investors, LLC (collectively "Investors"), entered into various Convertible
Debentures, Stock Purchase Warrants and other agreements, dated December 31,
2001 (the "December 31, 2001 Restructuring") with Integrated Business Systems
and Services, Inc. ("IBSS").

         On September 25 and 26, 2003, the Investors contacted you to advise of
their intent to convert their Convertible Debentures and to fully exercise their
Warrants. IBSS asked the Investors to forbear from converting their Debentures
and exercising their Warrants, and in exchange for such forbearance, IBSS and
the Investors on October 1, 2003, reached the understandings set forth below.

         The Investors and IBSS agree as follows:

         1.       Fixed Conversion Price. The Conversion Price (or Exercise
Price, as the case may be) in each of the "Convertible Instruments" listed
below, shall be deemed to be the Conversion Price (or Exercise Price) which
would have been applicable if the holder of the Convertible Debenture (or Stock
Purchase Warrant) had exercised such holder's conversion rights (or exercised
its purchase rights) as of October 1, 2003

         The Convertible Instruments to which this provision applies are the
following (each executed effective as of December 31, 2001):

                  (a) Class A Secured Convertible Debenture.

                  (b) Class A Contingent Common Stock Purchase Warrant.

                  (c) Class B Secured Convertible Debenture.

                  (d) Class B Contingent Common Stock Purchase Warrant.

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Integrated Business Systems and Services, Inc.
Attn: George Mendenhall, CEO
October 1, 2003
Page 2

                  (e) Common Stock Purchase Warrant (issued to IBSS Class A
                  Investors).

                  (g) Common Stock Purchase Warrant (issued to IBSS Class B
                  Investors).

         2.       Extended Maturity Dates. The Maturity Dates of the Class A
Secured Convertible Debenture and the Class B Secured Convertible Debenture are
hereby amended; as amended, the Maturity Dates of each such Debenture shall be
the earlier to occur of: (i) December 31, 2005; and, (ii) the date of the
closing of a Liquidity Event (as that term is defined in the Debentures).
(Extension of the Maturity Dates as set forth in the prior sentence shall
automatically extend the date for the holders thereof to elect a conversion of
such Debentures).

         3.       Extended Expiration Dates. The Expiration Dates of the Common
Stock Purchase Warrants and the Contingent Common Stock Purchase Warrants issued
to IBSS Class A Investors and IBSS Class B Investors (which expiration date is
at present December 31, 2004) is hereby extended to December 31, 2005.

         4.       Suspension of Interest Accrual. Provided that no Default
occurs under the Class A Secured Convertible Debenture or the Class B Secured
Convertible Debenture, interest under the Class A Secured Convertible Debenture
and the Class B Secured Convertible Debenture will not accrue on the unpaid
principal balance thereof during the period October 1, 2003 until the Maturity
Date.

         5.       Delayed Exercise Date. Investors agree that the Convertible
Instruments, all of which were exercisable prior to the date hereof, will not be
exercisable by the Investors until on and after October 1, 2004 (except in the
case of any proposed prepayment of the Debentures prior to December 31, 2005).

         6.       Personal Guarantees. The Personal Guarantees by George
Mendenhall and Stuart Massey, issued to the Investors as part of the December
31, 2001 Restructuring, are cancelled.

         Please signify your binding agreement to the foregoing by executing a
copy of this Letter Of Intent where indicated below. This Letter Of Intent may
be executed in multiple counterparts, each of which when taken together shall be
deemed to be a complete agreement. Telecopied signatures shall be binding as
originals.

                         [signatures on following page]

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Integrated Business Systems and Services, Inc.
Attn: George Mendenhall, CEO
October 1, 2003
Page 3

     INTEGRATED BUSINESS SYSTEMS AND SERVICES, INC.

     By: /s/ George E. Mendenhall
         ---------------------------
             George Mendenhall, CEO

     IBSS CLASS A INVESTORS, LLC                  IBSS CLASS B INVESTORS, LLC

     By: /s/ Bruce H. Seyburn                     By: /s/ Bruce H. Seyburn
         ---------------------------                  --------------------------
            Bruce Seyburn, Agent                          Bruce Seyburn, Agent

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