I have a iTouch running on 4.2.1 with Greenpois0n jailbreak. So one day, I decided to upgrade my computer to windows 7. The hard disk was reformatted. So I then decided then to sync my iTouch with my laptop, and it prompted me to delete all data. How do I fix it without losing all my apps and music and Cydia apps? I really need to sync, and I can't get my old itunes >.< I set to manually manage music and videos already for my iTouch