I’ve created a small playlist editing page with a few default templates just for fun 😉
Since I don’t remember your email address any more, I did upload it here:
http://sasiedzi.org/temp/playlists.html
Though I think such a thing (this wizard) would be better of in a popup, so I’ve also created this:
http://sasiedzi.org/temp/playlists2.html
which launches this popup:
http://sasiedzi.org/temp/playlistpopup.html
If that’s about what you had in mind, let me know and I’ll add the missing fields as well 🙂