How can I put my Moffat (GSC5061) oen door back on?

Hiya,
I tried to remove my oven door to clean and did this step by step through manual.
I have managed to take one side of the hinge off from door, but cant get the other one out. After several attempts to put it back I have got myself even more of a pickle as I cant put the loose hinge back and now I have a wonky door!!!
I have compared both hinges to see what is wrong. Both Hinges has what looks like a zig zag pattern at bottom to rest on the slit inside oven and the one that is ok is resting on it, But I cant seem to get the loose hinge to reach the slit - like, its too short but I know its something else, just dont know what....
Thanx;
Str4berrr3