Cabby Roof

[silude]

Hi there

i have a m reg mk3 cabby and im having trouble with the roof.
it wont line up properly with the top of the windscreen and can't lock it in, ive been trying to figure out how to pull it more forward but been unable to do so.

has anyone got any tips or helpfull advice to sort it out thanks

 

[Gareth]

ive got a cabby, and on the outside at the top of the windscreen, when the roofs in place it leaves like a channel?? thats normal, as for locking it back down i do the passenger lock first then the drivers,