FYI, you may want to give the vibez faq over at Riovolution a read: http://www.riovolution.org/thread/523

Sadly, the vibez does not offer you a way to manage playlists independently of the Now Playing list (Menu -> Now Playing). The Now Playing list is just as powerful as the Karma's, and you can save that as a named playlist. But to edit a saved playlist, you need to load it as the Now Playling list, change what you want, then save it back.

Or, use your favorite .m3u playlist editor on your computer and copy it down.