None of the mp3s show up (or playlists)..

Yes, I had the same problem but it was easily solved by creating a new soup playlist "Artist/Album" under the "All Music" folder.

It seems that the actual files are just under the "empegcar" heading and are not at all used as a playlist. I had to create a soup "Artist/Album" playlist under "empegcar" -> "All Music" in order to get the "Artist/Album" stuff to show up on the empeg. Now, whenever I drag and drop the new files I drop them on the "Artist/Album" folder under "empegcar" --> "All Music"

I hope that makes sense.