I recently started using Sage Payments as a gateway and their technical support explained to me that Zen Cart would supply any add-on's or patches necessary to use Zen Cart with their gateway. However, I have not been about to find any that work. Any suggestions?

Zen Cart version 3.1.9
have not upgraded ever (new project)
I have installed the sage/net1 payment moduel and the sage payment form and neither work
The Net1 posts an error in the URL and the payment form sends me to a UK site that does not recognize my merchant info.

Any help would be awesome!