How to downgrade from iOS 7 to iOS 6? - 1

I backed my iPhone 4 up to my computer. If I click restore and it puts me back to iOS 6, will I be able to get all my stuff back?

You can't downgrade from the software.

A. It will not put you back to ios 6. You would have to download the latest redsnow, download the ios 6.x version you want from apple then…
-open redsnow
-put the iphone into dfu mode (youtube tutorial all ove the place)
-used rdsnow to enter pwnd dfu mode
-once redsnow says your in pwnd dfu, you then open itunes, hold shift while you click restore iphone, and select the ios 6.x you downloaded earlier this wil l restore your iphone to os6.x. I think the only things saved during backup are photos and base system info like contacts, etc.