Okay I uploaded it and when I directly visit the page it gives me the following message -
CGI Error
The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are:
Thats all it gives
EDIT - I am very dumb lol I uploaded it to the wrong folder. The site root rather than the forum folder. Really need to get a decent FTP client rather than a web based one

Nice hack. Like other hacks this requires error_reporting(7); to be added to the scirpt to get rid of those nasty error messages.