You'll need to upgrade your MacBook to Mac OS X 10.6.8 so that you can run iTunes 10.7, required for synching to an iOS 6.1 device. Mac OS X 10.6 is available from the online Apple Store in most countries. Otherwise you'll have to use a computer that can run iTunes 10.7 to sync your iPhone.
Hey, great, thanks! Is there a way I can pick up all my music of my old MacBook, put it on another computer that runs itunes 10.7, then get it from that computer on to my phone? Alternatively, to upgrade iphone 3S to ios 6.1, I backed up everything on a Windows computer which I then used to restore my data back on to my phone. But, it didnt pick up my music and nor do you see my music in itunes on that computer. I would have thought I should be able to get my music on the Windows Computer and restore it to my phone. Whaddayarekon? Much appreciated varjak paw
Yes, you can move your iTunes library to another system. See this site, among others:
it didnt pick up my music and nor do you see my music in itunes on that computer. I would have thought I should be able to get my music on the Windows Computer and restore it to my phone.
It wouldn't have unless you moved the content to that computer or re-downloaded it from the iTunes Store. The only way you'd have gotten the content from the iPhone would have been via sync which would have erased everything on the iPhone that wasn't in the iTunes library on that computer.
If you can't upgrade your MacBook, use the above instructions to move your library to that Windows system.