Team U.S.A. took the gold medal in the 2005 Coupe du Monde de la Boulangerie. I've found a number of short articles about it here [1] and here [2] and here [3].
A movie of Team U.S.A. accepting the gold [4] is available on the BBGA site.
I haven't yet found any information on who won silver and bronze, nor have I found pictures yet. If anyone finds any, please post a link to them in the comments below!
Update: According to this article [5], France took second and Japan took third.
More info on the make up of Team USA here [6].
Update: A photo of the winning sculpture is available here [7].