So I am pretty computer illiterate and I can't figure out how to transfer. I have my first itunes on my older PC desktop which has all my music in it. I recently got a macbook pro. I have synced my new 3G phone to my PC so that I can have all my music on my phone. I rarely even turn the PC on now that I have my mac, HOW DO I GET THE SONGS FROM MY PHONE TO MY MAC ITUNES? When I plug it in it will just ask if I want to use that library from the mac which has nothing in it.