Thread:Project:Support desk/ShortURLs trouble... please help./reply

I think that the problem would be those rewrite rules:

RewriteRule ^([-_!~*'$a-zA-Z0-9]+)/([-_!~*'$a-zA-Z0-9]+)/?$ ./index.php?pretty;board=$1;topic=$2.0 [L,QSA] RewriteRule ^([-_!~*'$a-zA-Z0-9]+)/([-_!~*'$a-zA-Z0-9]+)/([0-9]*|msg[0-9]*|new)/?$ ./index.php?pretty;board=$1;topic=$2.$3 [L,QSA]
 * 1) Rules for: topics

If I haven't misunderstood them, the first one would match /wiki/SOMEPAGE and would take that action instead of getting to the wiki. Maybe you need to add a RewriteCond to skip those rules when the request is going into /wiki?