There was really no modifications to UBB (except for me adding a link to the script from UBB's quick-menu).
EveryAuction is a freeware script. If you want to see what I did to the script, compare the latest version from thier site with
the one I modified .
I installed the script into $CGIPath/auction/
and set it to chmod 755.
You're milage will vary. There are still some bugs I'm sure of it. I've not seen any in my testing yet.
To see what I've done, visit my board at
http://www.chainmaille.prohosting.com/cgi-bin/Ultimate.cgi and click the link to auction on the quick menu on the upper-right hand corner (where the profile, preferences, etc are).
CW