I know how you feel, I think, because I'm a programmer but don't know everything about all the server and DNS stuff. But it looks to me like your forum is at forums.2point0studios.com but
www.forums.2point0studios.com does not exist (there is no DNS entry for it), and so you either need to change all your options/config.php entries to forums.2point0studios.com or get godaddy to create a
www.forums.2point0studios.com alias for forums.2point0studios.com (or maybe that's something that can be done yourself, I'm not sure).