I'm told that the W800i needs to store audio in this structure:

W800i/MSSEMC/Media files/audio/[artist name]/[album name]

To set up SyncTunes follow these instructions...

1. Advanced:Volumes menu:
Select 'Number of destination folder levels' to be at least 2
Select 'Create Artist/Album folder hierarchy'
Unselect 'Create .m3u playlists'

2. Main window:
Select the Volume 'W800i'
Select Destination Folder 'MSSEMC/Media files'
Unselect 'Sync shows'

3. Advanced:Playlists window:
Select subfolder 'audio'

That should get the music into the right place!

Podcasts would get placed into 'W800i/MSSEMC/Media files/podcasts/[artist name]/[album name]' which would mean that they will not be visible. You can get round this by creating playlists within iTunes for podcasts and using the SyncTunes playlist sync instead of podcast sync.

The m3u playlists are not supported on the W800i. You can unselect this option, and the sync will be quicker.