[ROVERNET - UK] Part for Sunroof on Rover 75 2001

[Damien]

I have a 2001 75 with a sunroof, on the sliding lining there are 4 guides.
Two are sort of u shaped rubber bits held on by 2 screws. The other side has
2 plastic slides that seem to fit on too two spring like "hooks". Now mine
is missing one of the plastic guides and I went to get one for a dealer and
there seems to be no listing from them. Does anyone know what the part
number is for them?

Please help if you can 

Damien