Could anyone point me in the direction of where I can find instructions on how to remove and replace the brushed aluminium windscreen surround (A-pillars and header) on a B7 Cabrio?

I had my windscreen replaced by Autoglass shortly before exporting the car with me to Australia, but they didn't do a great job of putting the trim back on, leaving fairly big gaps beteen the sides and the top sections. I didn't get chance to take it back to them before the car was shipped, so I'm looking to sort it myself now.

Any help would be greatly appreciated.