I found this very nice piece of soft and thought someone might also be interested. I know people who spend 20-30 hs designing their own Winamp skins by manually editing bitmaps disregard (to put it kindly) ones (like me) who'd rather have a program create them. But a fact is I don't have that much time to spend going for the manual edit, as I believe many of you don't either. Hope you'll find it useful. BTW, it's free.
You can download from: http://members.tripod.de/DrAlgebra/english