Indi reorganized the forum recently, so the urls changed a bit and now the links in older posts are not valid.
It shouldn't cause much trouble, though.
At first, the original topics are still accessible here
http://www.aldorlea.org/officialsite/phpBB3/viewforum.php?f=95 (i.e. at the same page as the
Millennium 2 - Maps, Hints, Info topic), also, the new urls don't differ much, it's simply
http://www.aldorlea.org/officialsite/phpBB3/viewtopic.php?f=95&t=2697 vs.
http://www.aldorlea.org/phpBB3/viewtopic.php?f=95&t=2697