OpenX 2.6 Ad Server (and Categories question)

[Simon]

We've been using an older version (phpAdsNew) of what later became OpenAds and now is called OpenX. A very nice tool for managing the ad space on your websites.

So I finally decided to see what the new OpenX is like and installed it on another domain to check it out. Lots of changes, and while I like most of them, the new Categories for your websites is bugging me.

I'm not sure when it was added, but now when you're adding a new website (publisher) to the database you get to pick from a long drop down menu with all kinds of mainstream categories for your site. And I can't find a way to delete all those useless categories or how to add categories which make more sense for adult websites.

Anyone else using the latest version (2.6) of OpenX who can help me out here? I'm sure I'll feel stupid once I learn how easy it is to do this, but I can't find anything in the user or admin manuals, and searches on their forum and on the Net turned up nothing helpful at all.