The flat piece in the first picture is the base of the throne. It was attached to the center of the old raider by clipping off the rails in the middle. The rest of the pieces in the top picture are the parts for the throne, Vect's legs and torso(missing the pistol arm), and the two slaves that were put at the front of the throne platform.
Second picture: the identical gunners top left are the side gunners from the Dias kit. The two gunners to the right are the regular side gunners from the old ravager kit(not used with the Dias kit. The 2 guns on the left and the two guns on the right are also from a regular ravager (two dissies, two lances). The two guns in the middle are the dissies from the Dias kit. The are mounted using the bent arm thingies in the 3rd picture.
Third picture: Upper left-spiky bits from the Dias kit. Lower left: bent arm thingies mount below the throne platform to mount the dissies in the bottom middle of the 2nd pic. The four pieces on the right of the pic are the mounting brackets for the side panels of a an old ravager (not used with the Dias kit) The two pieces with the round notched bottom are the gun mounts for an old ravager.
Or, you can just look at this picture