RE: Directory Cannot be Created. I fixed mine! Instead of uninstalling it, you're given the optionto repair it, just check ONLY the box that says Remove Messenger skin customizations. I did and now I can download skins again. (: Hope it helps.
RE: Directory Cannot be Created. I'm having the same problem. I was downloading skins fine a few days ago and now it keeps popping up with an error message. ): I don't know what to do.