Accept credit cards within VB program

We need to accept credit card payment within a VB program. We do not presently have a merchant account, but will get one ASAP. The merchant account will also depend on which payment gateway you are familiar with. To get an idea of what we want to achieve, please go to [login to view URL] and download one of their practise tests, and see how payment and program unlocking works. For clarification..the program will need to contact one of our servers for credit card authorization, and when authorized, our server will then unlock the program onthe user's PC ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows XP, 2000 , 98