Can't get background image to show in cycles render https://www.youtube.com/watch?v=wjWoglMYXBE

I've followed this tutorial to the T and my end result is not showing properly for some reason. Any idea why this could be?

I have looked at the numerous times this has been asked on here and google but I'm at a loss now.

My end result is image 1, what I'm aiming for is number 2 and my compositor node setup is 3.

If I hook the last node up to viewer instead of composite it just displays a solid colour..
I don't know if I got what you wish, but for a simple object-over-background you could use something simpler like this:



[edit: I added another node setup, as suggested by cegaton, you can see both give same result in the two UV/image panels above/right]

note: without linking to the compositor node, imho you get no compositing in the final render...