There are about 5 Nicole Miller wedding dresses on Rue La La's site right now. At least I think they're from her wedding collection. One that I know is--because I had been interested in it--is sold out. They're in a group called "Award Worthy Dresses" & a subgroup called "Black White & Silver".
It's a membership site. If you don't belong and need an invite, you can join here:
http://www.ruelala.com/invite/bjackson80In the interest of full disclosure, I benefit if you use that link. You also can join by going to facebook and getting a link. If you haven't used the site, it's great. I think I found out about it from pirategal(?) and I've bought a lot of gifts and too many clothes, but they have amazing sales with great selections. Much more reasonable than Gilt. Also a good place to look for BM and hostess gifts!!