Document:

<PAGE>

                                                                   Exhibit 10.10

                  INSTRUCTIONS: PLEASE READ THE ACCOMPANYING LETTER FROM THE
COMPANY CAREFULLY. IF YOU WISH TO EXERCISE YOUR PREEMPTIVE RIGHTS, YOU MUST
COMPLETE AND SIGN THIS SUBSCRIPTION AGREEMENT AND RETURN IT TO: EVELYN C.
ARKEBAUER AT SACHNOFF & WEAVER, LTD., 30 S. WACKER DRIVE, 29TH FLOOR, CHICAGO,
IL 60611. (FAX: (312) 207-1000) NO LATER THAN OCTOBER 13, 2003.

                             SUBSCRIPTION AGREEMENT

                  The undersigned has preemptive rights to purchase shares of
Series A Preferred Stock and shares of Common Stock of VI Acquisition Corp., a
Delaware corporation (the "COMPANY"), as described in a letter to the
undersigned from the Company dated September 22, 2003. The undersigned hereby
subscribes for:

(CHOOSE ONE OF THE FOLLOWING OPTIONS:)

     X   The full amount of the undersigned's preemptive rights: 29.028 shares
         of Series Preferred Stock and 629 shares of Common Stock of the
         Company, for an aggregate purchase price of $29,657 ($1000.00 per share
         of Series A Preferred Stock and $1.00 per share of Common Stock).

    [ ]  Such lesser amount of Series A Preferred Stock and Common Stock of the
         Company as would be represented by an aggregate purchase price of
         $_______________. ($1000.00 per share of Series A Preferred Stock and
         $1.00 per share of Common Stock, and required ratio that 98.287 cents
         of every dollar invested be allocated toward the purchase of preferred
         shares and the balance to the purchase of common shares, with all
         issued shares rounded to the third decimal place.)

(If no box is checked but this form is signed and returned to company counsel,
the undersigned will be deemed to have subscribed for the full amount of his,
her or its preemptive rights.)

                  The undersigned hereby represents and warrants to the Company
that (i) he/she/it is purchasing these securities for his/her/its own account,
for investment and not with a view towards their resale; (ii) he/she/it
understands that these securities have not been registered under the Securities
Act of 1933 or any state securities laws, based on exemptions from such laws,
and that these securities may not be sold or otherwise transferred without
registration under or exemption from the provisions of applicable securities
laws, and that a legend to such effect may be placed on the certificate
evidencing these securities referring to these restrictions on transferability
and sale of the securities; and (iii) he/she/it is qualified by previous
experience to evaluate the risks and merits on this investment.

<PAGE>

                  The undersigned agrees to indemnify and hold harmless the
Company, its affiliates, successors, and anyone acting on its behalf from and
against all damages, losses, costs, and expenses (including reasonable
attorneys' fees) which they may incur by reason of the inaccuracy or falsity of
any representation or breach of any warranty made herein or in any document
provided by the undersigned to the Company.

         IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement as of the date indicated below and agrees to execute such reasonable
further documentation as may be necessary to effect the foregoing subscription.

                                                     MID OAKS INVESTMENTS, LLC

Dated:  September 28, 2003                               /s/ Wayne Kocourek
                                                     ---------------------------
                                                     By:  Wayne Kocourek
                                                     Its:  Chairman and CEO

(NOTE: Subscription Agreements dated and/or delivered after October 13, 2003
will not be accepted by the Company.)

Accepted:

VI ACQUISITION CORP.

By: /s/ Debra Koenig
   ---------------------------------
     Debra Koenig, Executive Vice President

Dated: November 19, 2003<PAGE>

                                                                   Exhibit 10.11

                  INSTRUCTIONS: PLEASE READ THE ACCOMPANYING LETTER FROM THE
COMPANY CAREFULLY. IF YOU WISH TO EXERCISE YOUR PREEMPTIVE RIGHTS, YOU MUST
COMPLETE AND SIGN THIS SUBSCRIPTION AGREEMENT AND RETURN IT TO: EVELYN C.
ARKEBAUER AT SACHNOFF & WEAVER, LTD., 30 S. WACKER DRIVE, 29TH FLOOR, CHICAGO,
IL 60611. (FAX: (312) 207-1000) NO LATER THAN OCTOBER 13, 2003.

                             SUBSCRIPTION AGREEMENT

                  The undersigned has preemptive rights to purchase shares of
Series A Preferred Stock and shares of Common Stock of VI Acquisition Corp., a
Delaware corporation (the "COMPANY"), as described in a letter to the
undersigned from the Company dated September 22, 2003. The undersigned hereby
subscribes for:

(CHOOSE ONE OF THE FOLLOWING OPTIONS:)

     X   The full amount of the undersigned's preemptive rights: 3.325 shares of
         Series Preferred Stock and 72 shares of Common Stock of the Company,
         for an aggregate purchase price of $3,397 ($1000.00 per share of Series
         A Preferred Stock and $1.00 per share of Common Stock).

    [ ]  Such lesser amount of Series A Preferred Stock and Common Stock of the
         Company as would be represented by an aggregate purchase price of
         $_______________. ($1000.00 per share of Series A Preferred Stock and
         $1.00 per share of Common Stock, and required ratio that 98.287 cents
         of every dollar invested be allocated toward the purchase of preferred
         shares and the balance to the purchase of common shares, with all
         issued shares rounded to the third decimal place.)

(If no box is checked but this form is signed and returned to company counsel,
the undersigned will be deemed to have subscribed for the full amount of his,
her or its preemptive rights.)

                  The undersigned hereby represents and warrants to the Company
that (i) he/she/it is purchasing these securities for his/her/its own account,
for investment and not with a view towards their resale; (ii) he/she/it
understands that these securities have not been registered under the Securities
Act of 1933 or any state securities laws, based on exemptions from such laws,
and that these securities may not be sold or otherwise transferred without
registration under or exemption from the provisions of applicable securities
laws, and that a legend to such effect may be placed on the certificate
evidencing these securities referring to these restrictions on transferability
and sale of the securities; and (iii) he/she/it is qualified by previous
experience to evaluate the risks and merits on this investment.

<PAGE>

                  The undersigned agrees to indemnify and hold harmless the
Company, its affiliates, successors, and anyone acting on its behalf from and
against all damages, losses, costs, and expenses (including reasonable
attorneys' fees) which they may incur by reason of the inaccuracy or falsity of
any representation or breach of any warranty made herein or in any document
provided by the undersigned to the Company.

         IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement as of the date indicated below and agrees to execute such reasonable
further documentation as may be necessary to effect the foregoing subscription.

Dated: September 23, 2003                        /s/ Walter Van Benthuysen
                                                 ------------------------------
                                                 Name: Walter Van Benthuysen

(NOTE: Subscription Agreements dated and/or delivered after October 13, 2003
will not be accepted by the Company.)

Accepted:

VI ACQUISITION CORP.

By: /s/ Debra Koenig
   ---------------------------
   Debra Koenig, Executive Vice President

Dated: November 19, 2003<PAGE>

                                                                   Exhibit 10.12

                              VI ACQUISITION CORP.

                              AMENDED AND RESTATED
                             SUBSCRIPTION AGREEMENT

                  This Amended and Restated Subscription Agreement, dated as of
November 19, 2003 is made by and among WIND POINT PARTNERS IV, L.P., WIND POINT
PARTNERS V, L.P. and WIND POINT IV EXECUTIVE ADVISOR PARTNERS, L.P., each of
which is a Delaware limited partnership, WIND POINT ASSOCIATES IV, LLC, a
Delaware limited liability company (collectively, the "Purchasers"), and VI
ACQUISITION CORP., a Delaware corporation (the "Corporation") and amends,
restates and replaces in its entirety that certain Subscription Agreement, dated
as of July 31, 2003 among the Purchasers and the Corporation.

                  Each of the Purchasers hereby subscribes for that number of
shares of Common Stock and shares of the Series A Preferred Stock (collectively,
the "Shares") of the Corporation set forth opposite its name on the attached
Exhibit A and each of them hereby agrees to pay to the Corporation the
subscription price of $1.00 per share of Common Stock and $1,000.00 per share of
Series A Preferred Stock representing the aggregate investment purchase price
reflected on Exhibit A.

                  Each of the Purchasers hereby represents and warrants to the
Corporation that (i) it is purchasing these Shares for its own account, for
investment only and not with a view towards their resale; (ii) it understands
that these Shares have not been registered under the Securities Act of 1933, as
amended or any state securities laws, based on exemptions from such laws, and
that these Shares may not be sold or otherwise transferred without registration
under or exemption from the provisions of applicable securities laws, and that a
legend to such effect may be placed on the certificates evidencing these Shares
referring to these restrictions on transferability and sale of the Shares, and
(iii) it is qualified by previous experience to evaluate the risks and merits of
this investment.

                  Each of the undersigned hereby agrees to indemnify and hold
harmless the Corporation, its affiliates, successors, and anyone acting on its
behalf from and against all damages, losses, costs, and expenses (including
reasonable attorneys' fees) which they may incur by reason of the inaccuracy or
falsity of any representation or breach of any warranty or covenant made herein
or in any document provided by the undersigned to the Corporation in connection
herewith.

Dated: November 19, 2003

                          Subscribing Parties:

                          WIND POINT PARTNERS IV, L.P.,
                          WIND POINT PARTNERS V, L.P.,
                          WIND POINT IV EXECUTIVE ADVISOR PARTNERS, L.P.
                          WIND POINT ASSOCIATES IV, LLC

                      [SIGNATURES BEGIN ON FOLLOWING PAGE]

<PAGE>

                                   WIND POINT IV EXECUTIVE ADVISOR
                                   PARTNERS, L.P.

                                   By: Wind Point Investors IV, L.P.
                                   Its: General Partner

                                        By: Wind Point Advisors LLC
                                        Its: General Partner

                                   By: /s/ Jeffrey A. Gonyo
                                      ------------------------------------------
                                   Name: Jeffrey A. Gonyo
                                   Its: Managing Member

                                   WIND POINT ASSOCIATES IV, LLC

                                   By: Wind Point Investors IV, L.P.
                                   Its: Manager

                                        By:  Wind Point Advisors LLC
                                        Its: General Partner

                                   By: /s/ Jeffrey A. Gonyo
                                      ------------------------------------------
                                   Name:  Jeffrey A. Gonyo
                                   Its:  Managing Member

                                   WIND POINT PARTNERS  IV, L.P.

                                   By: Wind Point Investors IV, L.P.
                                   Its: General Partner

                                        By: Wind Point Advisors LLC
                                        Its: General Partner

                                   By: /s/ Jeffrey A. Gonyo
                                      ------------------------------------------
                                   Name: Jeffrey A. Gonyo
                                   Its: Managing Member

                                   By: /s/ Robert L. Cummings
                                      ------------------------------------------
                                   Name:    Robert L. Cummings
                                   Its:   Managing Member

<PAGE>

                                   WIND POINT PARTNERS  V, L.P.

                                   By: Wind Point Investors V, L.P.
                                   Its: General Partner

                                        By: Wind Point Advisors LLC
                                        Its: General Partner

                                   By: /s/ Jeffrey A. Gonyo
                                       -----------------------------------------
                                   Name: Jeffrey A. Gonyo
                                   Its: Managing Member

                                   By: /s/ Robert L. Cummings
                                       -----------------------------------------
                                   Name: Robert L. Cummings
                                   Its: Managing Member

Accepted and agreed
as of this 19th day of November, 2003:

VI ACQUISITION CORP.

By: /s/ Debra Koenig
    --------------------------
     Name: Debra Koenig
     Its:  Executive Vice President

<PAGE>

                                    EXHIBIT A

                   SHARES SUBSCRIBED; AGGREGATE PURCHASE PRICE

<TABLE>
<CAPTION>
                                                                 SHARES OF SERIES A        AGGREGATE PURCHASE
           INVESTOR                   SHARES OF COMMON                PREFERRED                  PRICE
------------------------------- ----------------------------- -------------------------- --------------------
<S>                             <C>                           <C>                        <C>
WIND POINT PARTNERS IV, L.P.                  1,324                     61.075                 $ 62,399.00
WIND POINT PARTNERS V, L.P.                   3,520                    162.331                 $165,851.00
WIND POINT IV EXECUTIVE                          10                      0.459                 $    469.00
ADVISOR PARTNERS, L.P.
WIND POINT ASSOCIATES IV, LLC                     5                      0.226                 $    231.00
</TABLE>

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