Take the bright phillips head screws out from the inside of the rear of the door. Get back down on the floor on your back and gently pry the moulding away from the bottom of the door. As you pry, you will see several white clips at the bottom of the moulding. I have found it fairly easy to release the white clips from the moulding with a very small screwdriver. As you keep pressure on the moulding, and you release each clip, you move on to the next one. Once all the lower clips are released, simply slide the whole moulding to the rear of the car,,, this is best done with the door slightly ajar. This is for the front door. The rear door has two phillips screws you need to remove also, but one is at the front of the door.
A lot of taking these cars apart is in finding the right trigger to release things. Once you figure that out it is usually easy.