Quote Originally Posted by Darin Boville View Post
Don't worry about the extra screws. That's just to hold the optional (red on the front of the board) cable-release gizmo in place.

A Linhof board (Technika board) is just the same as any other board, except it only goes in one way. You use the same retaining ring to hold the lens in place. No difference at all.

--Darin
As Darin says, the screws in question hold the cable-release gizmo in place. But you do want to make sure that the gizmo is firmly in place. If it falls off or you take it off there will be a little hole (or maybe more than one, I forget) that will leak light and ruin your photographs unless you then cover the holes with tape or something else. I learned that one the hard way.