The radiator drain is behind a rubber flap that you can see from below. It's held in place by 4 or 5 plastic pins on the rear of it, just push firmly up at the rear and they will pull out of the frame allowing the flap to drop down and expose the drain. Getting the pins back in place is a little tedious, but can be done. Start from the center and work to the outer ones.

As for the drain plugs and bleeder:



Brent