Integration of PayPal, Google Checkout, & Checkout by Amazon Into Site

Hello, I have a website that I'd like to integrate into our accounts with the following payment provider: 1) PayPal 2) Google Checkout 3) Checkout By Amazon PLEASE NOTE: YOU MUST HAVE EXPERIENCE WITH THESE SYSTEMS TO BID ON THIS. I WILL ONLY CONSIDER CODERS WHO INCLUDE THEIR PREVIOUS WORK AS PORTFOLIOS. Basically I want to have code that passes the various form elements in to each provider. There are several elements that need to be included in the final order; all of these must be passed to these three checkout options. Thanks in advance. ## 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 PHP