Craig, I tried responding to your e-mail but I am having difficulty with my e-mail account and it would not send for some reason.
The screws that go through the door thread into a spoon shaped bracket. I use stainless steel screws and a very small flat washer. The bracket has elongated holes on the top (for adjustment) and screws directly to the hinge.
Odds are the pair of holes at each hinge location got filled in with puddy.
If you need any measurments or pics, let me know.
Jeff