I am trying to transfer my itunes files from my imac g4 OS 10.2.8 to a friends Windows XP. We are connected through a Home Router. No idea how to do this so a step by step process would help out. Thanks.
It's doable, but not something we can tell you about on the forums. Downloading music and transferring are one in the same...piracy, which is against the law and against our rules here.
However, if your friend just wants access to your songs (to listen to) and you're on the same network, then turn on sharing in your iTunes preferences. Just make sure both computers are using the same version of iTunes (4.x.x).