heyho vinnie,
please always take a look into /usr/local/apache2/logs/error_log as PHP errors will appear there. It seems that dokuwiki needs a pcre lib with utf8 support, whilst our pcre.tcz in the repo doesn't support utf8 (at least this is the error I got when trying to run a dokuwiki login here). Though I don't like bundled libs that much, I will try to build php with its built-in pcre lib, which should support utf8 - only a guess but we'll see if it works out ;-)