I've never seen any trucks with part #5 in them. #7 is the lower rubber cushion. You're missing both rubber pieces by the looks of your first pic. From top to bottom it goes small washer, body mount bushing, frame, cushion, large mount washer(the one next to the bolt on the right in the first picture, then the nut.
It looks like you have both bolts, both nuts, both large mount washers, both small washers, and the remnants of one of the body mount bushings. The other rubber thing in the picture is the lower radiator mount bushing that goes onto the little legs on the bottom of the radiator. The mount that you posted is exactly what the factory S10 mounts look like, and they're in the correct order in the pic.
