I have changed from "iframe" to "default" with the template settings in x-payment. I am now allowed to select "credit card" as a payment option without getting the previous screen capture error. However, upon submitting the order, this is the error screen:
http://www.dpciwholesale.com/Signatures/2.jpg
For PayPal Payments Pro, I can't find anywhere to reference the merchantEmail field. It uses API access information.
Qualiteam?