Got my iPhone 4, backed it up w/ old files, how to get new ios4 screen back?

[dinosaur1]

when i plugged my iphone 4 into itunes it backed up my contacts, but then it erased the new home screen ios4 look. it says i have the ios 4 version. How do i get it back w/out losing my info on my iPhone?

 

[plinden]

Settings -> Reset -> Reset Home Screen Layout.