ubb classic 6.7x is a near dead end, kept only alive via hacks or folks like me who can't easily, if never, get out of it an on to far more 'feature rich' *supported* forum software. i've tried to migrate to vb, php, smf. when you've got 20k members, 143 forums, well over 500k *pruned* posts, over a thousand users online at the same time, it's just an extremely difficult task.
i'm using a few ubb hacks/mods thanx to this forum, but even they have their limits. case in point is that the control panel 'view password' and control panel 'change user name' hacks don't work at the same time, it's either one or the other (could someone please look into fixing that???). this is what happens when you deal with hacks/mods instead of tested integrated code updates.
there are so many other features i sorely need - auto resize of posted images, topic time frame auto delete, global post pruning by member number, better style page variables that allow for image patterns instead of solid colors, etc etc ad nausea.
given better 'features', flat file cgi ubb classic would then be lots better that going the relational php mysql route, imho.