if you click an old link it brings you to a page that says "Invalid URI"
http://forums.sudhian.com/messageview.cfm?catid=74&threadid=90651 brings you to
http://www.sudhian.com/index.php?/forums/messageview.cfm?catid=74&threadid=90651 and then just displays a white page with "Invalid URI" and just sits, it'd probably be much better if it showed something about the post being moved or the link is now different because of a forums software update and then forward them to the new main sudhian forum page at least.