Paypal Integration for online software mart

Hi All we need: 1. Home page should have the user creation. (Login and Register) 2. Add to Cart, Checkout etc under every software. 3. When checks out, paypal integration is needed, details come from database and user should be able to change that if required. 4. When payment is approved from paypal, our software should immediately start downloading. 5. It'd be great if you can create a small admin where we can add new items and their prices. We have the design ready and we implemented oscommerce and if you can quickly add oscommerce on our server, it'd be our first choice otherwise we'll go with your solution. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux PHP MySQL