Exhibit 10.1
 
  PRIVATE & CONFIDENTIAL
 
 Employment Letter and Terms and Conditions of Employment Full-Time, Salaried Chief Operating
Officer and Managing Director
    Compensation
 Stock Option Grants
    
    Option Grant Date(s)
    
    Vesting Date(s)96,334
    
    April 1, 2008
    
    December 31, 200896,333
    
    July 1, 2008
    
    December 31, 200896,333
    
    October 1, 2008
    
    December 31, 2008




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Exhibit A
  Duties; Reporting; Termination.
 Stock Options.




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Annual Performance Bonus
 Benefits/Long-Term Incentives
 Business Expenses
 Living Accommodations
 Spousal Travel Expenses
 Tax Equalization
 Tax Preparation
 Payments Upon Termination




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Payments Upon Termination by the Company (other than Summary Termination)
 Special Termination Agreement
 Indemnification
   Employee Representations




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Miscellaneous.
 1.
    
    This Employment Letter can be amended only in writing signed by both you and the Company. To
the extent this Employment Letter makes reference to or modifies the terms of any other
agreements, the choice of law provision set forth in each of such other agreements shall
continue to govern the terms and conditions of such agreements as well as the interpretation
and construction thereof and any references thereto that are set forth herein. All other
terms and conditions of this Employment Letter, as well as the terms and conditions of your
Managing Director Agreement, shall be governed by and construed in accordance by the laws of
the state of New South Wales, Australia.
 2.
    
    In the event of any conflict between the provisions of this Employment Letter and the
provisions of any of the Managing Director Agreement, the Stock Option Agreement, the
Assignment of Stock Options, or the Special Termination Agreement, the terms and provisions in
this Employment Letter shall control.
 3.
    
    This Letter Agreement is assignable by the Company only to a successor (whether by merger,
consolidation, purchase or otherwise) to all or substantially all of the stock, assets or
business of the Company, and the Company will require any such successor, by written agreement
in form and substance reasonably satisfactory to you, to expressly assume and agree to perform
this Employment Letter in the same manner and to the same extent that the Company would be
required to perform it if no such assumption had taken place; provided, however, that no such
written agreement shall be required if the transaction results in the successor becoming
legally required to fulfill the obligations of the Company under this Employment Letter,
whether by operation of law or otherwise. Except as expressly provided herein, you may not
sell, transfer, assign, or pledge any of your rights or interests under this Employment
Letter, provided that any amounts due hereunder shall, upon your death, be paid to your estate
unless you have designated a beneficiary therefor in accordance with any applicable plan.
 4.
    
    For the purpose of this Employment Letter, notices and all other communications provided for
in this Employment Letter shall be in writing and shall be deemed to have been duly given when
delivered personally or by overnight service or delivered or mailed by certified or registered
mail, return receipt requested, postage prepaid, addressed to the Company at its executive
office or to you at the address on the records of the Company (provided that all notices to
the Company shall be directed to the attention of the Chairman of the Compensation Committee
and the Companys General Counsel) or to such other address as either party may have furnished
to the other in writing in accordance herewith, except that notice of change of address shall
be effective only upon receipt.
 5.
    
    If any provision of this Employment Letter or any portion thereof is declared invalid,
illegal, or incapable of being enforced by any court of competent jurisdiction, the remainder
of such provisions and all of the remaining provisions of this Employment Letter shall
continue in full force and effect. Failure to insist upon strict compliance with any of the
terms, covenants, restraints or conditions of this Employment Letter shall not be deemed a
waiver of such term, covenant, restraint or condition, nor shall any waiver or relinquishment
of, or failure to insist upon strict compliance with, any right or power hereunder at any one
or more times be deemed a waiver or relinquishment of such right or power at any other time or
times. This Employment Letter may be executed in




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several counterparts, each of which shall be deemed to be an original but all of which together
will constitute one and the same instrument.
 6.
    
    It is intended that this Employment Letter will comply with Section 409A of the Internal
Revenue Code and this Employment Letter shall be interpreted in a manner consistent with such
intent. If any provision of this Employment Letter (or of any award of compensation,
including deferred compensation or benefits) would cause you to incur any additional tax or
interest under Section 409A or any regulations or Treasury guidance promulgated thereunder,
the Company shall reform such provision; provided that the Company agrees to maintain, to the
maximum extent practicable and without additional cost to the Company, the original intent and
economic benefit you of the applicable provision without violating the provisions of Section
409A; provided, further, in no event shall you be required to defer the date on which you are
entitled to receive any payment or benefit hereunder for a period in excess of six months.
     [Remainder of Page Intentionally Left Blank; Signature Page Follows]




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ACCEPTED:/s/ David Hunter       March 13, 2008David Hunter Exhibits