My xkr 2007 convertible has developed a roof problem. It doesnt seem to seal properly on tlhr passenger side and is letting in some rain and lots of road nouse. Any suggestions please

 

Have a shop do a pressurized smoke test (they are cheap) to see exactly where the problem lies. Different locations need different fixes.

 

You could try the window reset procedure (you'll find it in several threads of this forum), basically run the window up and down (from the driver's control), but continue to hold the window switch until you hear a 'click' after the window has reached the end of it's travel in each direction. Repeat a couple of times.
My passenger window has a tendency to not go down all the way and the reset gets it back to normal. Yours may not be going up all the way.