Hi, I just bought your plugin along with a UPS plugin from Alatek. The UPS plugin works with the standard checkout, but when the One Page Checkout is enabled, I can see but can't select any of the UPS options; only the default shipping options work. I think it has something to do with the AJAX refresh, which seems to wipe away the UPS selection.

I also seem be getting credit card errors with a payment plugin that I added, and these don't happen in the normal checkout layout.