, here we go. first, open the rear door. then look at the window switch. ( if you have power windows ) put a small screw driver in from the front and it comes out. Disconnect the window switch. There should be a phillips screw under there, unscrew it. there are 2 small phillips screws on the bottom of the panel, unscrew them. now there are 2 small plastic clips on the rear of the panel. push the center of them and pull them out from the ends. to reinstall them, pull the center out again more than they were, put in the slot and push the small button till flush. now there are afew white clips inside the panel. you need a "crows foot" or a simple strong flathead screwdriver. put it between the panel and the metal of the door and start prying little by little going aroung from right under where the 2 plastic clips were. then once all the clips are disconnected, push the panel up. now you will need a 10mm socket and ratchet to remove the gold screws. good luck.
You will most likely need to replace any plastic fasteners as these tend to break even when removing them carefully. These 'plastic clips' are not expensive and can be found at any Toyota dealership.