ALthough i am no coder like some of the greats around here, i also ran into a problem converting my board from cgi to yabbse. Do to issues with my server the only viable workaround there was is as follows.
1. Download and install downloaded Msql 3.23.53 , active perl 5.8.0.805 , php4.3.1 as well as apahce.
2. set them up on my own computer as a server.
3. Once everything was running properly then copied my yabb cgi to the httpdoc in apache as well as converter and a fresh install of yabb.
4. converted yabbcgi to the new yabbse install then did a database dump and uploaded that to my server with yabbse.
If you'd like to see all the problems and so on I had with it the link to the post about it is here.
http://www.yabbse.org/community/index.php?board=132;action=display;threadid=19251;start=0&
http://www.yabbse.org/community/index.php?board=132;action=display;threadid=19346The second link has the problems with setup on my server and such. Look them over and I hope they offer help. BTW Unknown helped a great deal in my problems.