Did the packaging they came with give you any clues? Sometimes they tell you which bits go where. The deadest giveaway is which side the wires come out of as that tends to usually be on the downside and heading towards control cavity. The fact these have their name stamped on them also suggests you have them positioned right way around.

The Toneriders on my EX-1 has the screws at the back on each PUP so there goes the theory for having reversed slugs & screw pole pieces yet the factory ones on my Slash Epi LP have the usual screws outermost? Go figga???