Yes, the auction clearly says its from "Looking for Par'Mach in all the Wrong Places", not "You Are Cordially Invited..."
Despite not being a girl, I always thought if that wedding dress went up for sale, I'd want to bid on it, just because Jadzia Dax was my favourite character and "You Are Cordially Invited..." was one of my favourite episodes. It's like how Gene Siskel bought John Travlota's suit from "Saturday Night Fever" just because he loved the movie so much. You don't have necessarily want to wear something if you're going to buy it as a collector's item. I don't like this one as much, though. Too wacky looking, especially on Jadzia. I'm hoping the wedding dress is auctioned someday, but I doubt I'd have enough money to bid for it if and when it does get auctioned.
Surely not wedding dress I am searching for. It was horrible. I would love to gift better one to my bride