The method that I've heard recommended for things like this is to convert the AAC into MP3. One problem with file conversions on iTunes AAC files is that they're protected files. However, there is a simple solution (although the quality of the file will be reduced a little). That is to burn an audio CD from the AAC files using iTunes and then to convert these audio files into MP3s in your Zen program. It will allow you to convert about 15 to 20 songs at a time and will cost you the price of 1 CD each time.

To 10sEn: Well, through a lot of trial and error, I got the first batch of the songs converted. I found that my Sonic program that I use to copy cds didn't convert to mp3 files unless I paid for an upgrade that I couldn't afford. I did click on "burn cd" from the iTunes page. I tried several different ways to copy to cd. Everytime, it showed it worked, although if I put the cd in a cd player, it showed nothing. It did show the tunes were on my D drive. I was able to pull those up through iTunes and converted through there. I manually added artist/album/title. I didn't realize my mp3 program had synced up everything, and I discovered the tunes were on my mp3 player last night. I have some sample tunes on a music program that d/l'd on my mp3 player as well, which have synced up and d/l'd several times. I finally dug through my music files and deleted thoughs. Some OK tunes, but nothing I wanted to keep. But, I had to keep deleted them over and over from my Zen. I'm still muddling through, but at least I'm starting to figure things out. Thanks for your advice! Now I just have to use up the rest of my iTunes card. Man! I wish I'd known what a pain this would be using iTunes when I don't have an iPod! I had to post this as an answer because I can't get any more comments to post. Grrr! Dang glitches!