I just submitted a new update that should be available in extras-devel soon.

In this update you should see the beginnings of *proper* playlist support. I also hope the auto-builder glitch is resolved, if not I will upload the binary here and you should be able to see the progress bar with my build

On the playlist, items that are gray are items that are not downloaded and items with a icon next to them represent the current playing song.

Even though an item is gray that does not mean it won't play. It will attempt to re-download the song. I plan to allow configuration of how the player "forgets" the downloaded songs