[Koha] Ah, now what . . .

It's up, but I'm not sure what I'm looking at. I only see two index pages, one is the initial menu and one is the search screen. There are a lot of perl scripts, but what calls them? I want to be able to enable that new members screen that's commented out on the main menu and I want to be able to catalog new books. I also hear mention that you were able to directly upload marc21 records. This would be cool as it would save us a lot of work. I want to be able to edit the catagories too, without having to directly access the database. So which perl script do I start with. Also, do you ever sleep or leave your keyboard. These replies seem to come at all hours.