Hmm, it works on my BB and if you click the link you'll see it goes straight to the forum? Try this, because it might just dislike the headers in the redirect:
http://thetownend.com/index.php?action=forum For the record I don't use my mobile for this, so know nothing of browsers and what not. I know DRS uses a BB, so maybe he can chime in as well?
Edit: the fact it's showing a 404 means what you are requesting doesn't exist, which may mean you have the address wrong. Just type in thetownend.com/mob and see how that works.