I have a jailbroke ip4 and iPad 2 both running 4.3.3 and they are synced to my netbook. I purchased a iMac and now want to sync them to it. I know I can transfer all my apps off them and I've put my music and movies bit it's saying that they have to be erased and re synced. Will this delete my 4.3.3 and my jailbreak? If so how do I by pass this.