Now the button shows up to check out, but I get this message: The following errors have occurred.
(99) This transaction cannot be accepted.
Authorize.net gave me a error code 99 tool at: http://developer.authorize.net/api/reference/responseCode99.html. But, the items that they want, I can't seem to find in the code on the Confirm.php page. I also activated the MD5 Hash tool on Authorize.net a couple of days ago. So, I don't know if I need to put the "Hash Code" that I created into the Confirm.php page. Please let me know what steps I need to take now. Thanks.