the redirector only sends people to the main forum list - it does not fully redirect
We had exactly the same problem, with a large number of links.
Fortunately, we tend to use links such as
http://www.fansfocus.com/hornchurch - and so I had to just update a hundred or so links in a vhost.conf file.
Sadly I had to scrap our menu system - as this was all based around the old forum names of say /hornchurch rather than /123 - the new forum id numbers as opposed to words are more problematic for my php skills LOL
