How to upgrade from IOS6 Beta 4 to Full IOS 6 on Iphone?

I'm a dev but it says i'm already on IOS6 so does that mean it won't let me upgrade to the full version? It won't work on "over the air" and itunes thinks i'm on OS6 already. I'm in Australia and the update is supposedly already out. Any help would be good!

I'm working on it now! I say download the ios 6 full ipsw and do a force install with itunes.