DrByte:
That shows that you're using the addon from the downloads area (which uses the obsolete SDK), and not the Payflow-specific addon for v1.3.8 which I made reference to (posted link) earlier in post #9 in this thread.
I installed the the new addon per your instruction and everything seems to work well, except that I am probably missing some language files (I have the payflow.php language file frpm the addon zip file), I get error dialog boxes such as:
"Errors have occurred during the processing of your form.
Please make the following corrections:
MODULE_PAYMENT_PAYFLOW_TEXT_JS_CC_CVV"
Again I am using 1.3.8. Is there any any place where I can get these? or should I scan the actual payflow.php script file and add new defines to the payflow.php language file? Thanks again.