How can I rearrange UITabBarController items using the Storyboard?

In the storyboard highlight the tab bar controller.

Make sure you are zoomed in enough and that a blue box is around the tab bar controller.

Then click on the tabs and drag them around to where you want them

I solved this by right-clicking on the storyboard -> open as source code, and then rearranged the "segue" xml-blocks in the order I wanted them to be.

xcode 4.5, drag and drop failed. as suggested by another, close xcode and restart xcode. after this drag and drop of tabBarItems worked perfectly to rearrange order.

I could not drag and tabs around while i had the tab bar controller as root view of navigation controller. I had to delete the navigation controller and restart xcode (4.5.2)