osCommerce MS3 Bug fixes

Only individuals with good osCommerce, PHP and MySQL background need to bid on this one. Below are the project requirements: 1. Upgrade PHP Live Support application. This is not an osCommerce application. 2. Fix broken Quickbooks QBI contribution or install a new one. 3. Fix broken PDF contribution or install a new one. 4. Fix xsell (cross sell) contribution or install a new one. 5. Fix a Google search hyperlink 6. Fix customer invoices in admin. It currently displays $0 for past purchases. 7. Write the code to make products data downloadable in zipped CSV format from the server.