Downgrading ICE Cream Sandwich version to GingerBread Version

Hi,
I am Using Samsung Galaxy Ace from last months. Previously, it had an Android Gingerbread Version.
Then, I upgraded it to Android Ice Cream Sandwich. But, now I don’t like the features of ICS and I want back my Gingerbread Version.
Is there any way to downgrade my Android ICS version to Gingerbread Version?

I think first you need to get recover all your data first and after that you easily restore to android 2.3 gingerbread.