You need to register the first time you use the forum.  It's fairly simple.  Your email won't be public at all, and you can make up whatever username suits.  Everyone is welcome (whether you have kitties in the program, no kitties in the program or no kitties at all).

To register, you can either just add a new topic under one of the categories and it will ask you to login, or you can click on the registration page at the beginning.  You don't have to register if you just want to lurk and read.  But for god's sake, come and talk to us, don't just lurk!  So long as you aren't baddies (as our fuzzy four would say), and you keep it clean, there's no reason not to wade in.  We're all learning as we go, so there are no stupid questions!