I use the newest version of IP (RC) and by following this link:
you should see all categories you have on your board.... But I don't see anything!
I 'accidentally' removed the first standard "icy phoenix category", and now if I add a category, it does not show in ACP, but you can normally see it on the portal page and the you can choose a category to post a topic in to show on the portal page.
So, for new users: just change the standard category on news categories, do not remove it!
Someone knows how to fix this?
Thanks in advance!