How can I replace the bottom door seal on a Neff 7136(7610) dishwasher?

Model Nos:
S44 66
ENr S4466 BOGB/07
FD 7006 560047
Door Seal Part No 29 8534
My Neff 7136(7610) dishwasher has been leaking. I managed to obtain a bottom door seal, and have managed to remove the old one, but am now struggling to get the hinges to align sufficiently with the screw holes as the springs are so powerful.
The fitting instructions with the part show the hinges in relation to the seal but without the door in place. When the door is in place, there does not seem to be room to get the seal into its seating.
Question 1 How can I align the hinges with the holes in the door?
Question 2 How is the seal intoduced to its prpoer seating?
Question 3 It is also not clear which screw holds the seal in place. Is it the screw that holds the hinge, or the tapered screw 1 cm lower on the door ?