Note that the "problem" of not selecting WebPay should not happen. In a 1.5.7 or later, OPC, WebPay and PayPal that the WebPay is listed first and, with the entry of the first digit of the CC #, the Credit Card option is automatically selected.

I could not create a scenario where the Credit Card was not selected when information was entered into the WebPay form.

HOWEVER, I could duplicate the CC info being sent but not selected by entering a 4 in the CC line, selectging PayPal, and then returning to the CC line to enter a valid CC info.

IOW, it takes a pretty big mistake sequence by the customer to get CC info entered without the button being selected.