This contribution will add a full support of a Google Checkout service to your Oscommerce store. Benefits: - Google Checkout for OsCommerce will run on any PHP4 or PHP5 enabled web-server - No requirements for using libXML and libCURL installed. - Full google checkout sandbox support - Full shipping support using merchant-calculations google checkout shipping - Full tax support over merchant-calculations in google checkout using taxes from OsCommerce - Basic shipping modules like flat-rate and per-item shipping supported - Basic USA shipping modules: UPS, USPS, FEDEX with real-time quotes are supported - Order management inside OsCommerce Administration area: orders placed via Google Checkout will appear in your OsCommerce admin, and you will be able to process them (Charge,