Synching problems from Limewire 5.3.6 to Ipod Nano 8

[mycooperman]

My friend went and loaded some of her Limeware version 2.5 songs onto my Ipod when I first got my Ipod. Now I have gone to Limewire and have downloaded (only onto Limewire are these songs showing...not on Itunes) about 200 Limeware 5.3.6 version songs. When I plug my Ipod Nano 8 into my laptop (using Vista) to synch, the warning says "your Ipod is synched with another Itunes library. An Ipod can be synched with only 1 library." My options are "erase and sync" or "transfer all purchases." I have no purchases as I am using Limewire Basics and have never bought a song from Itunes. I don't want to 'Erase and sync' because I am scared I will erase all my friends music on her Ipod. Right now I don't care if I erase everything of mine. I just want to be able to get a playlist from Limewrire 5.3.6 to the Itunes library onto my Ipod to play in my car. HELP!!!!

Thanks