UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support Before I install ubb6 can I?

Currently running 5.45c with a few mods such as Private Messaging / stars in status / last post by etc etc

Have I got to remove these before upgrading? Or can I just go ahead with the upgrade?

If I can't, can I just upload the original 5.45c scripts back over the current ones first & update threads etc?