check the topic right above this on how to get my latest hybrid (if you're up for the task :P)
otherwise, take a look at the sticky: N00B HELP GUIDE: Upgrade/Downgrade, Backing up, BRICKED STORM!!! Your FULL Resource! at the top of this forum on how to upgrade
I recommend the latest .148 leak, it runs awesome
Since you do not even know where to go to get an OS or how to do it, I agree with lyricidal, read the guide. Then I suggest initially sticking with a straight OS upgrade for a while, continue reading the how to's and other posts before attempting a Hybred.