Im in the process of downgrading from 1.1.2 to 1.1.1. Ive just kicked the phone out of DFU mode with iPhuc and i installed installer and oktoprep. The guides say now to open itunes and click update. All im getting is a screen that shows my iphone and it asks me to set up a new phone. it either lets me restore a backup of my old phone or set up a new phone. What do i choose here? Why isnt there a update option?