I have a jailbroken 3gs running 3.1.2, but i won't sync the apps back to iTunes that are on the phone. It says the computer isn't authorized, even though it is. I have 3 questions: 1. Is this caused by a jailbreak. 2. What is a work around where i don't loose my apps, 3. if i just hit the update button to get 3.1.3 will i loose all my apps and the jailbreak or just the jailbreak?