how do I add forums?

Hi,

installed wwfroum yesterday, everything works fine, I also got to configure everything in the admin.

Then, I found one problem.  How do you add forum and category?? After I login as a adminstrator, all I see is the admin, active topics, memberlist, search, help, private messenger, profile, logout icons at the top.  Or do I have to add forum and category in the access file?!

I'm a current using snitz forum right now, thinking about switching to wwforum.

oh god.. I must be blind. I fee so stupid now..