but my friend is not using itunes, he never has.
I think I will just call this a case of bad communication. It was also hard for me to at all grasp the problem, since I heard it from a not computer literate friend, based on a phonecall from his neighbour.

I'm guessing from what you're saying, that limewire doesn't do the same as itunes, ie. share media files automatically on a LAN?