Hey all - long time no see!

What file do I need to change to get my forum link changed that is in the Information sidebox? At the moment for some wierd reason it is pointing to http://www.mysite.com.au/catalog//forum/index.php

when its ment to be pointing to:
http://www.mysite.com.au/forum/index.php

Im sure its an easy fix and a stupid question knowing me, but im doing my head in trying to fix it. Thanks everyone!

NB: I think the reason its broken is because I deleted my old store and did a fresh install of the latest version. I forgot to delete the old forum though And I was hoping I have not broken anything else in the process? Does anyone know?