Playlist problems

Sorry if this has been posted before but I could not find the answer. I am having a problem syncing my fuze. I first tried using WMP with no prevail, after reading posts I tried switching it to MSC mode and using Winamp.  I thought it worked ok but after putting my playlists on the device. Some playlists are not listed and the others are there but there aren’t any songs in the playlist. However all the songs and albums appear to be on the device, but nothing is in the playlists.  Does anybody have good suggestions?