Creadit card and Paypal IPN Code integration

hi I need to do two things about the payment system at my website 1: Integration of IPN (Instatnt Payment Method) code at Paypal system. Already the paypal payment system is working, just need to integrate that code.... 2: Credit card processing system, The website is in ASP.NET, C#. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform f