I used to be able to add them and have them show up in public view but something has changed.
For instance I created an Alternative Health subcategory but it's not showing up here - http://cortjohnson.org/forums/Recovery/ .
I've tried to create several fictitious categories (bla bla) but they're not showing up. I reset permissions and they're fine. I logged out and the subcategories are not viewable either.
We're up to date on both Xen and RM