Standard&Poor's Ratings Services affirmed its 'AA/A-1' and 'AA' ratings on 12 AUSTIN Trust series following the issuance of additional variable certificates and a decrease in inverse certificates. The individual standby purchase agreements, provided by Bank of America National Association (A+/A-1), that provide liquidity to the variable certificates have been amended to reflect the additional variable certificates. USPF Criteria: Secondary Market Derivative Products, June 27, 2007.