ScriptAlias /friwiki /usr/lib/cgi-bin/friwiki/wiki.pl
<VirtualHost *>
        ServerName www.fridim.org
        ServerAlias wiki.fridim.org
        DocumentRoot /var/www/oddmuse/friwiki
        RewriteEngine on
        RewriteRule   ^/$  /friwiki [R]
</VirtualHost>