Ryan, you are a superstar, I got that working fine. May I be cheeky and ask for more help?

I am using the "test_gateway" module as a base to create my module, what I need is... on submit of "uc_cart_checkout_review_form" it instead sends the variables (plus new ones for the bank) to the bank URL instead of to itself for processing. The variables all need to be sent via POST and I need to add to the form, as well as modify the order ID variable name.

Where are the functions that create and process that form? I cant find it anywhere .

Thanks
Will