gt kid,The clasp and the solid bar will need adjustment,(the bit that the door handle operates)It can take a while to sort but worth it in the end.
to get the alignment right check that the runners and other mountings are secure
There designed to be adjusted to allow for wear to the runners and bodyshop tolerences.it can be usefull to have someone inside the van to check that the seals are water tight.(hose pipe on the roof)
The Peugeot expert vans (not sure if the scudos are the same) have a metal bit that locates the front of the door,its common for them to knock out the female grommet that it sits into,it drops into the "b"pillar and can be retreived by removing the six pin central locking conection on the bottom edge.