Rename it? Delete it?

Few weeks ago, I was rearranging my blog's categories. I've created too many categories and I wished to cut down a little bit, some categories will be deleted and some will be renamed.

Anyway, I accidentally deleted those categories that I'm supposed to renamed. I kept telling myself I want to rename but somehow I go delete all these categories. Arggg!!! Although the posts under deleted categories will not be deleted but now I'm not sure where all my posts are. Are they in category A or category B or category C?

~sigh.. sometimes when you tell yourself not to do this and yet, you will go do it..