That's exactly the reason FT, I don't see myself buying Flying Circus Tank or whatever it's called so I don't really see the point of downloading the skins. I thought it might be problematic as there's nothing in the file/folder name to denote which is which so it's not really a major issue if it's not a simple solution (add to that the fact that I've already downloaded some 1,400 skins of all sorts using this utility of yours it's probably a moot point anyway).
Nice work though old boy, I'm far too lazy to go looking for skins for the planes so this is ideal.