Document:

EX-10.4

VOTING AGREEMENT

VOTING AGREEMENT dated as of July      , 2008, by and among the undersigned holders (each, a
“Shareholder”) of shares of common stock of The X-Change Corporation (the “Company Common Stock”)
for the benefit of Samson Investment Company, a Nevada corporation, Ironman PI Fund (QP), L.P., a
Texas limited partnership, and John Thomas Bridge and Opportunity Fund, LP, a Delaware limited
partnership (each a “Purchaser” and collectively, the “Purchasers”) as follows:

WHEREAS, on December 4, 2007, pursuant to that certain Securities Purchase Agreement by and
among the Purchasers, the Company and AirGATE Technologies, Inc. (as amended, modified or
supplemented from time to time, the “Purchase Agreement”) the Company sold to the Purchasers (i) an
aggregate principal amount of $1,800,000 of the Company’s Senior Secured Convertible Term Notes
bearing an annual interest rate of 8% with a maturity date of five (5) years from the date of
issuance (as amended, restated, amended and restated, modified or supplemented from time to time
the “Tranche A Notes”), which are convertible into shares of the Company Common Stock and (ii)
warrants to purchase 4,500,000 shares of the Company Common Stock (collectively, the “Tranche A
Warrants”); and

WHEREAS, pursuant to the Purchase Agreement, the Company desires to sell to the Purchasers (i)
an aggregate principal amount of $1,800,000 of the Company’s Senior Secured Convertible Term Notes
bearing an annual interest rate of 8% with a maturity date of five (5) years from the date of
issuance (the “Tranche B Notes” and, together with the Tranche A Notes, the “Notes”), which are
convertible into shares of the Company Common Stock, (ii) warrants to purchase up to 25,714,286
shares of the Company Common Stock (collectively, the “Tranche B Warrants” and, together with the
Tranche A Warrants, the “Warrants”), and (iii) 16,714,286 shares of the Company Common Stock (the
“Tranche B Shares”); and

WHEREAS, there are currently insufficient shares of the Company Common Stock authorized under
the Company’s Articles of Incorporation for the Company to comply with its obligations to issue
shares of Company Common Stock upon conversion of the Notes and exercise of the Warrants; and

WHEREAS, the Purchase Agreement provides that the Company will promptly call a special meeting
of its stockholders for the purpose of voting to amend the Company’s Articles of Incorporation to
increase the number of authorized shares of the Company Common Stock so that the Company will have
an adequate reserve from its duly authorized shares of Company Common Stock to comply with its
obligations to issue shares of Company Common Stock upon conversion of the Notes and exercise of
the Warrants; and

WHEREAS, as a material inducement to the purchase by the Purchasers of the Tranche B Notes,
the Tranche B Warrants, and the Tranche B Shares, the Shareholders wish to evidence their
obligation to vote all shares of Company Common Stock that the Shareholders own or are otherwise
entitled to vote to approve the amendment to the Company’s Articles of Incorporation to increase
the number of authorized shares of the Company Common Stock so that the Company will have an
adequate reserve from its duly authorized shares of Company Common Stock to comply with its
obligations under the Notes and Warrants.

NOW, THEREFORE, the Shareholders agree as follows:

1. Each Shareholder hereby agrees to vote the shares of Company Common Stock set forth
opposite its name in Schedule A hereto (the “Schedule A Securities”) to approve the
amendment to the Company’s Articles of Incorporation to increase the number of authorized shares of
the Company Common Stock so that the Company will have an adequate reserve from its duly authorized
shares of Company Common Stock to comply with its obligations under the Notes and Warrants and any
actions directly and reasonably related thereto at any meeting or meetings of the shareholders of
the Company, and at any adjournment thereof or pursuant to action by written consent, at or by
which such matters are submitted for the consideration and vote of the shareholders of the Company.
Upon approval by the Shareholders of an amendment to the Company’s Articles of Incorporation in
accordance with this paragraph, this Voting Agreement shall terminate.

2. Each Shareholder hereby agrees that such Shareholder shall not enter into any voting
agreement or grant a proxy or power of attorney with respect to the Schedule A Securities in any
manner inconsistent with the obligations of such Shareholder under this Agreement or take any other
action that is inconsistent with the obligations of such Shareholder under this Voting Agreement,
including any action that would prevent, or materially delay, the receipt of the approvals
contemplated by the Purchase Agreement.

3. Each Shareholder hereby irrevocably appoints the Purchasers, or any of them, as proxy for
and on behalf of such Shareholder to vote (including, without limitation, the taking of action by
written consent) such Shareholder’s Schedule A Securities, for and in the name, place and stead of
such Shareholder for the matters and in the manner contemplated in Section 1 hereof. The
Purchasers shall vote the Schedule A Securities to approve the amendment to the Company’s Articles
of Incorporation to increase the number of authorized shares of the Company Common Stock so that
the Company will have an adequate reserve from its duly authorized shares of Company Common Stock
to comply with its obligations under the Notes and Warrants.

4. Each Shareholder hereby represents and warrants to the Purchasers that as of the date
hereof:

(a) Such Shareholder (i) owns beneficially all of the shares of Company Common Stock
set forth opposite the Shareholder’s name in Schedule A hereto, (ii) has the full
and unrestricted legal power, authority and right to enter into, execute and deliver this
Voting Agreement without the consent or approval of any other person, and (iii) has not
entered into any voting agreement or other similar agreement with or granted any person any
proxy (revocable or irrevocable) in respect of such shares; and

(b) This Voting Agreement is the valid and binding agreement of such Shareholder.

5. If any provision of this Voting Agreement shall be invalid or unenforceable under
applicable law, such provision shall be ineffective to the extent of such invalidity or
unenforceability only, without in any way affecting the remaining provisions of this Voting
Agreement.

6. This Voting Agreement may be executed in two or more counterparts each of which shall be an
original with the same effect as if the signatures hereto and thereto were upon the same
instrument.

7. The parties hereto agree that if for any reason any party hereto shall have failed to
perform its obligations under this Voting Agreement, then the party seeking to enforce this Voting
Agreement against such non-performing party shall be entitled to specific performance and
injunctive and other equitable relief, and the parties hereto further agree to waive any
requirement for the securing or posting of any bond in connection with the obtaining of any such
injunctive relief. This provision is without prejudice to any other rights or remedies, whether at
law or in equity, that any party hereto may have against any other party hereto for any failure to
perform its obligations under this Voting Agreement.

8. This Voting Agreement shall be governed by and construed in accordance with the laws of the
State of Delaware.

9. Each Shareholder will, upon request, execute and deliver any additional documents deemed by
the Purchasers to be necessary or desirable to complete and effectuate the covenants contained
herein.

10. No Shareholder shall sell, assign, transfer, or otherwise dispose of, or enter into any
contract, option or other arrangement or understanding in respect of the direct or indirect sale,
assignment, transfer, or other disposition of, any Schedule A Securities at any time prior to the
grant of the approval contemplated by Section 1 hereof unless any such transferee enters into a
binding agreement to vote such shares and otherwise act in respect thereof in accordance with the
obligations imposed on the Shareholder hereunder.

[THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]

1

IN WITNESS WHEREOF, the parties hereto have executed this Voting Agreement as of the date
first set forth above.

SHAREHOLDERS:

Michael L Sheriff:

Sheriff Family Limited Partnership:

By: Michael L. Sheriff – General Partner

Ivan Chow:

2

[Signature Page to Voting Agreement]

Kathleen Hanafan:

3

PURCHASERS:

Samson Investment Company

By:

Name:

Its:

4

Ironman PI Fund (QP), L.P.

By: Ironman Energy Partners, L.P.,

its general partner

By: Ironman Capital Management, LLC,

its general partner

By:

5

John Thomas Bridge and Opportunity Fund,
LP

By:

Name:

Its:

6EX-10.1

INTRODUCTION

This guide provides a summary of Corinthian Colleges, Inc.’s (the company) Campus Support Bonus
Plan (the plan), for July 1st, 2008 – June 30th, 2009 (plan term).

The plan provides a lump-sum cash payment following the completion the fiscal year for achievement
of annual budgeted operating profit and other goals based on predetermined performance and award
schedules.

ELIGIBILITY

Current Employees

For a current employee in a position to be eligible, the employee must be employed in a
bonus-eligible position on the first day of the plan term and remain employed by the company on the
payment date.

New Hires, Promotions and Transfers

If an employee starts in a bonus eligible position after the start of the fiscal year (new hire or
employee moving from no bonus plan to this bonus plan), the employee is eligible for a bonus on the
first day of the next month following their start date, promotion date or transfer date. Annual
overachievement bonus will be based on the company’s performance over the full fiscal year but the
employee’s bonus will be prorated based on the number of full months the employee was in the
position.

	 	 	 	Example: If an employee is hired on February 3rd, 2009, his or her proration
would be for 4 full months of service (March, April, May and June).

Any time an employee moves from an annual plan to a quarterly plan (or a quarterly plan with an
annual overachievement), the employee begins eligibility in the new plan on the first day of the
next fiscal quarter, and remains eligible under the old plan up until that date.

Any time an employee moves from a quarterly plan (or a quarterly plan with an annual
overachievement) to an annual plan, the employee begins eligibility in the new plan on the first
day of the next fiscal quarter, and remains eligible in the old plan up until that date.

Circumstances not fitting into the above criteria will be determined on a case by case basis by the
Chief Executive Officer and Human Resources.

Terminations or Resignations

Any employee who leaves the company for any reason before the payment date will not be eligible to
receive a bonus.

PLAN COMPONENTS, MEASURES AND MECHANICS

Please see the accompanying document(s) for details pertaining to the components, measures and
specific mechanics for your plan.

If applicable in your Bonus Plan Schedule, during the first quarter of the plan term, you will work
with your supervisor to develop your Management Bonus Objectives (MBOs) for this bonus plan.

GATES

All gates for the annual payouts must be achieved to qualify for any payout whatsoever.

AWARD DETERMINATION AND SIZE OF AWARD

The plan operates under a “target award” framework, where participants have a bonus target as a
percentage of base pay, and earn awards based on the degree to which performance goals are
achieved.

The award calculation is based on a percentage of a participant’s annual base salary in effect at
the end of the plan term.

PAYMENT DATE

Payouts earned will be paid up to 90 days following the end of the plan term.

OTHER INFORMATION

The company reserves the right to suspend, modify or terminate this plan at any time in the sole
discretion of management. For example, the company may reduce, suspend, modify or eliminate the
payment of any quarterly bonus earned if significant regulatory and/or business practices are found
to be out of compliance by the company’s executive management team.

The company also reserves the right to adjust bonus plan performance targets upon the occurrence of
unusual or extraordinary events in the sole discretion of management. Nothing in this document is
to be construed to guarantee its continuation in this or any future year or guarantee any
employee’s participation in the plan.

The Chief Executive Officer will make the final decision regarding any disputed bonus computation
or award.

	 	 	 
	PLAN APPROVAL	 	 
	Corporate Human Resources

	 	Date

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