Just got my new iphone5, so I'm pretty excited to load my music onto it. However when I try and install the required Itunes 7, I get this message: "This software requires Mac OS X version 10.6.8 or later." My macbook is pretty old, probably 6 or so years, however just because I have an older version, does that really mean I can't use my new iphone to its full potential? Do I really have to purchase an OSX 6 software package? Your help would be much appreciated. Thanks.