Place a piece of tape on the back of the hook and catch pieces. This will allow you to test out the location before you start drilling.
Set the catch piece inside the drawer about an inch from the edge.
Set the hook piece on the drawer an inch down from the top and close the drawer. Open the drawer and make sure the two pieces line up. If not, change the location of the hook until it catches the catch piece.
Mark the screw hole locations by placing a mark through the holes with a pencil.
Remove the pieces and take the tape off the backs.
Drill pilot holes for the screws.
Place the pieces back over the screw holes and drill in the screws.
Close the drawer and try to open it.