the door trim has to come off, prise the electric window switch out and disconnect it. there is an allen screw behind the handle, take that off to get the handle off. There are cross head screws down the front edge, along the bottom edge, up the back edge and in the middle of the door card. take them all out. the door card is clipped in at the top, pull it out and take it off. pull the top corner of plastic sheet off, swap the handle. i used either no nails or silicone sealent to stick it back, whichever was in the gun at the time, but you could use a hot melt glue gun.
to put the door card back on i wuld recommend getting the metal clips out of the top of the door and puttng them on the door card then banging them in. Then just put the screws back in.