While not hard, this last part was a bit of a pain in the butt just because the spaces to work in are very small and tight.
To remove the Throttle bodies from the engine, you have to disconect them from the rubber intake manifold. There are two retaining rings that hold the throttle bodies to the engine. You want to loosen the UPPER rings closest to the throttle bodies, so the rubber manifolds remain on the engine when your done.
Its hard to see, but this is the upper ring you want to release.