Got everything configured, and set up an administrator account -- that part worked flawlessly.
When I try to access the login page, the browser loads a generic IIS 7.0 500 Error page with the message:
HTTP Error 500.0 - Internal Server Error
C:\PHP\php-cgi.exe - The FastCGI process exceeded configured activity timeout
Has anyone else encountered this issue? What do I need to do to fix it?