Since nobody will tell me how UBBDev made the "Pages: 1 2 3" etc. appear UNDER the topic listing, I'm trying to figure it out by myself.

I don't know the first thing about CGI, much less UBB hacking, but I suspect I should add a
tag between the subject name value and the pages value in "public_topic-page.pl", but I'm not totally sure.

Could anyone help me out and save me the trouble of reinstalling my forum after I've messed everything up

Its just a
tag, your right.

OK. But I'm not sure in which page I should look for these values, and the names of the values. Any help is very much appreciated.