I have jailbroken many times and their is one for iOS 6 an iOS 6.0.1. To help you I need to know your iOS (I operating system) and to find this out you go to settings on your idevice then general then about and where it says version is your iOS.
Depends on what version you're running. If you are running iOS 5.1.1 then you can run it through a jail breaking program called redsn0w. If you're running iOS 6.0 or 6.0.1 then there isn't a jailbreak available yet.