Online Payments

We have two websites that I want to be able to process credit cards through (either for registration for a conference or online donations). I have setup our merchant accounts with our bank and setup our payment gateway with Authorize.net. I need help creating the forms on our website to collect registration/user information but then to also pass the user into the gateway to process the credit card information. I've been trying to follow the Simple Integration Method (SIM) from the [login to view URL] website <[login to view URL]>, but I can't get it to work. ## 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 Our sites are hosted on LINUX servers and they support PHP and PERL scripts.