Sorry for the late reply here. This has to do with the way the "user-defined" (ie non-admin) created events worked - it was to make "Event Categories" be available only for "official" guilds events, while user-defined events were for things like ad-hoc groupings for smaller events (5-man instances, etc).
This can perhaps be changed.
Hehe, no problem.
But that would be great, Chops. Because, in our guild we have many different event categories and everyone is allowed to start up events. Unfortunately now this only shows nicely when everyone has the admin rights there, lol. If we turn that off all events will look the same on the calendar and it will be very hard to distinguish what goes on when without doing a mouseover on every single event.