In the video Kurt adjusts his uv's and in realtime in the perspective window you can see the checker pattern being adjusted accordingly.
You have got it wrong.UV modification is not possible from perspective view.You can only select them over there.All the UV modification are done inside UV editor.
Select the head.Goto Window > UV texture Editor.
hold mouse right button and select UV from the menu.
Now u will be able to select uv from the uv map.
Then press W/move tool and move the uv.
sometimes it is hard to select the desired uv from the 2d map.On that condition, u can right click on the model in the perspective view and select that uv(while the UV texture editor is still open)
hope this helps.