Had a look at it this evening, sunroof was very easy to remove, although at first I was unsure of how to remove the plastic trims, they just pull back slightly, and then away. Sunroof panel was 6 x torx screws.
The metal frame seemed clean enough, the seal was just a loose fit more than anything.
If the sunroof was 'tilted' the seal would turn up at the front, then when lowered stayed up, meaning it cought the wind at speed.
could not find a way of keeping it in place, didnt have any glue or silicone to hand, so I used ..... duck tape!! black in colour and it seemingly does the trick, for now anyway, and you cant tell its there.
So, I will pursue a better solution while I see how long the temporary repair lasts.
Thanks anyway fellow forum users, for your info and help.