This excerpt taken from the LUX 20-F filed Jun 28, 2006.
Deferral of Guarantors rights
Until all amounts which may be or become payable by the Obligors under or in connection with the Finance Documents have been irrevocably paid in full and unless the Agent otherwise directs, no Guarantor will exercise any rights which it may have by reason of performance by it of its obligations under the Finance Documents:
(a) to be indemnified by an Obligor;
(b) to claim any contribution from any other Guarantor of any Obligors obligations under the Finance Documents; and/or
(c) to take the benefit (in whole or in part and whether by way of subrogation or otherwise) of any rights of the Finance Parties under the Finance Documents or of any other guarantee or security taken pursuant to, or in connection with, the Finance Documents by any Finance Party.