This is one of the few places that had me put my info in and click my role - "bride" and then put my FI's info in and I could also click "bride" for her. The other ones have always been obligatory bride and groom. This goes for most of the venues and services we've checked out - always had to scratch out "groom" and replace.
The Macy's people also "got it" right away and were very friendly with us when we went for a registry event. I know this can be regional, but at least their website is always gay friendly.