I am sure its been covered somewhere but I never really get a defiante answer

I am running Windows 2003 Server with PHPbb Forum and Roster

I am unable to link the sigs in the forum it just shows as the code unless I create the jpeg on the server and host the image.

Also I get a CGI has misbehaved for the Realm Status Picture.

Any Ideas anyone?

Yes, you have php running in CGI mode for IIS

It needs to run in ISAPI mode