Currently Being ModeratedJan 30, 2013 12:49 PM (in response to NoonPatar)
Welcome to the Apple Support Communities
MobileMe was discontinued last year, so you can't use MobileMe anymore. Instead, you have iCloud, that requires OS X Lion or Mountain Lion. To set up iCloud, open System Preferences > iCloud, and follow the steps.
If you don't see iCloud, you may need to upgrade OS X. Open > About this Mac, and tell us what OS X version you are running
Currently Being ModeratedJan 30, 2013 12:50 PM (in response to NoonPatar)