gene, like tod said blum has an incredible number of combos when you put the hinges and plates together. can you be a little more specific.
your hinge should have an opening angle (90, 120, 170)
it should be either a straight arm, half cranked, and one other that slips my mind at the moment
then the plate will be dimensioned in mm for it's thickness.
the last 2 combos help determine the offset of the door over the face frame.
are you doing overlay or inset.
if you are using overlay hinges and plates, the plates have small ears on them that are meant to catch the face frame and place the hinge correctly.
i am thinking you have inset because some of the plates that you can use for inset don't have those indexing "ears" on them
i said all that, but still need details to really help. you can also check out blum's website.
www.blum.com
by the way i set my hinges 3" in from top and bottom, to center of the cup
chris