I'm not really sure where to start off, but I'll try to be detailed as possible. I am trying to help a friend who runs training events that wants to promote them via affiliates. He is currently using the Merchant One gateway system. For his last training his programmer created a PHP script to accept payments via the Merchant One api system.
I talked to him a few minutes ago, and he wants to use Merchant One to accept payment when someone registers for the trainings, and use Paypal to pay the affiliates.
What needs to be done to get this working?
In other words, what does the programmer have to add to the already existing payment.php script?