I'll be honest. Their's no existing working and reliable Link Checker for
ANY forum that checks links and removes them to the trash area. Anyone who says otherwise is lying. I can say this having tried over 20 current link checker bots, several older ones and coded several myself and none work 100% as their are too many variables out of ones control making it impossible. Even Warez-BB's link checker has serious problems and flaws. I believe Warez-Raid paid a phpbb coder a lot to make them a Link Checker (which I believe is the best of a bad bunch) and this may work with a greater success rate however I doubt it's not flawless. My current one which is
Linkzbot Universal Link Checker is the best free around as other's have suggested above and will give you a list of the pages with dead links but won't move them to the trash area for security reasons. For a full demo, example's, and other questions you can PM me.
EDIT: proof that it's impossible is Rapidshare had server problems for a bit today making ANY link checker 100% percent accurate impossible.