Mmm.. perhaps somebody else here can remember the details, but something like this came up before in the past year: emplode not working on a player with zero playlists/tunes installed.

I forget whether there was a trivial workaround or not.

EDIT: It could be as simple as using jEmplode (link at top of this page) instead, at least for the initial download of at least one tune/playlist.

Cheers