More Bad News, or WTF AM I GONNA DO?!

Akin to my last post... well. Damn.

I can't for the life figure out how to change categories. I looked everywhere and it seems to me that there isn't any option to delete pictures. Unless I'm missing something this seems like a major flaw in the fanart posting community.
Does this mean if a mistake is made then its permanent?

I may look back on this and laugh, but for now I'm rather flustered. T.T