Looks like you just didn't rename the file correctly-
When I go here-
http://www.msofficeforums.com/fast-register.php I get a vbseo file not found message - basically the file doesn't exist. That is the file it is looking for in your case. I assume you changed it in settings.
If the file did exist it would forward me to yur forum index (that is what the page does if you try to browse to it manually.)