Credits should be automatically added. Check the file permissions on downloadsipn.php/downloadsipn2.php in the root of your forum. If you visit that file in the web browser you should not get an error.
Yep that would be the problem.
The default permissions are 666 after install, I have now changed them to 755. When I got to the file now, in my browser, it just comes up with a blank page, which I'm guessing is correct.
Thanks for the info.
EDIT: I have just had an error appear via email that say "INVALID IPN DETECTED" As i didn't know this original problem was to do with IPN, I have just read, in another thread, that changing the permissions to 644 seemed to have worked for someone else before.
My site at present is not available maybe it's a failsafe on the server side that shuts it down as it's also saying "cmd=_notify-validate
" error...I'm not sure if it see's that as a threat to the server, but I will change permissions to 644 when i get access.