OK, as Steve posted the setback for most hardware 37 mm, let's assume yours is too for the sake of this explanation. So you'd drill your first set of holes 37 mm from the front edge of your sysport. This will place the slide the correct distance from the edge of the panel so the drawer box will sit flush. Now, measure the distance between the first and last system holes in the slide, it should be some multiple of 32, I'd guess 320 mm for your size slide. Now add the 37 mm setback to the distance between holes 320 mm and you'll get 357 mm. Subtract 357 mm from the width of your panel, the remaining number will be the distance you'll want to drill the other set of holes.
Now, a couple of things to note, the system hole for the 37 mm setback isn't usually the first hole in the slide, it's the hole that is about 35 mm or so in from the front edge of the slide. The 320 mm distance between holes is a guess used as an example for this explanation, it may or may not be the correct number.
