I have a MacBook Pro running Snow Leopard 10.6.8, with itunes 10.7. It's causing annoying issues with my iphone 4 and I want to downgrade back to itunes 10.6.3, which I have successfully downloaded the dmg file from the apple website. But when I try to go through the installation wizard thing, it won't let me because I already have the newer version of itunes on my Mac. All the info I'm finding on the web on how to do this is in regards to Windows (bleah!) and I'm about ready to yank my hair out trying to find relevant information. Can anyone out there tell me how to do this, or if it is even possible? Maybe I'm overthinking this...? Forgive me if this is a lame noob question.