If I remember correctly, the radiator drain unscrews about 1/8 turn counter clockwise, then pulls out.
The coolant reservoir has a pressure cap screwed on top. It is part of the cooling system and is pressurized as well. All you have to do is add fluid to the reservoir and it will run down into the engine and radiator. Fill the coolant with the vehicle shut off until it is just over the cold line on the tank, then open the little black 7mm bolt sticking up above the water pump on top of the black tube that runs across the front of the motor to the throttle body. Hold the screw open until coolant comes out, then close it. Now you can run the engine til it warms up, keeping the level up. Don't let it overflow, if it starts to, put the cap back on and let it run until the cooling fans come on. Shut it off, let it cool and re-check the level.