Currently Being ModeratedNov 30, 2012 11:25 AM (in response to Vincent C)
Which ID are you trying to change? To change the App Store Apple ID go to Settings > iTunes & App Stores. Tap on the bar with the current Apple ID. Select Sign Out, then sign back in using the new Apple ID. If you created a new Apple account you will have to sign in using the old ID and password to update ny apps downloaded using the old ID.