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So the arms mount to the crossmember in the factory mount locations, then the top of the arms mount to the long bolt that goes through the Zinc looking plates.. then the zinc looking plates bolt up to the black plates, and the black plates mount to the block.
Ran solid mounts on my on my old 968 LS1 for a couple of years, I could barely tell a difference from the Energy Suspension mounts except they did not become mush and drop the engine on steering rack after several track events. With camber plates, full Racers Edge bushings and 700lb/600lb spring rates the solid mounts are virtually detectable.