I'm using the Redhat Interchange shopping cart, and was trying to figure out how to change the darn payment routine!

My credit card service account is with 2checkout.com, and they gave me the following instructions to use with 3rd party carts, like Interchange:

In most cases just find in the shopping cart ( maybe in a code file ) the authorize.net payment url


and change it to


Then just set everything else up as if you had an authorize.net account.

Thanks for any help..!