Actually most hacks seem to work with a few revisions to newer UBB versions. It's nice to have things ported to make our lives much easier and so we can spend more time on things such as template hacking. Cool job Allen!
Anyway, you can add more smilies without limit and the hack excluding the dropdown just by editing the cp_graemlins.cgi file. Where it says "25" (two times) just change it to whatever number or just delete it.