The local tile store provided me with Foresight Vapor Retarder for vapor barrier on the studs, its like a tar paper. Do you recommend just stapling it to the studs? I've also seen that some people use a roofing tar on the tub lip to adhear the vapor barrier to the tub lip and they also apply it to the studs and then staple. What do you recommend?
As far as the window goes, that is going to be my biggest challenge. I was thinking of putting the durock up to the little 1-by window stops and then just priming, painting and caulking the heck out of it since it is such a small amount of wood. And the window sill is probably only going to be 1" deep so I was going to put a couple pieces of bullnose on there? What do you think? Also, I'm doing a 3" x 12" bullnose border around the sides and top of all the tile.
You can see what I mean in the pic below. The tile will go to the red line.