i'm in the middle of putting my roof in, it's a jigsaw, i'm a bit on from you i'm at the winder at the mo trying to get the cables and winder to work.
i'm not to sure what you mean tbh,
we put the runners in place first and put a few screws in to hold them in place (cables fitted before they go in to the van. make sure there fitted in the right runners and cross over at the front where the winder gear should sit.
once runners are in fit the back of the sunroof on the bit you have photoed above clip them in the roof, and make sure you clip over the 2 metal straps as i think this it the bit that makes the roof lift at the back. once the back end is clipped in side the roof back nice and easy and even,
we left the front of the runners loose so we could clip the front runners on the rail.
as you slide the roof back by hand the roof cables ( which should still be hanging over the roof above the cab area) should nicely slide to there proper place in the gutter area.
i'm no expert and is my first experience with sunroofs so i'm not sure if the above method is correct, but it's worked for us and well were nearly there.
make sure everything is clean oiled up nicely, i have done this and even with brand new cables it is really tight so slide, so not to convinced the winder will take it.
i've had great advice from the lads here, i'm sure someone will be along soon to help.
i've hunted the net for instructions but i can't find any, have a good look at the roof and cables before you do anything it makes sense after a while.