The Bianchi USA online store has them:

https://store.bianchiusa.com/index.p...d=19&Itemid=26

Actually, they're similar, but I think the one Ullrich wore had a sub-sponsor or two on it. This one just has the white band and "Bianchi", but it's almost the same. I've wanted one for a few years now, too.

edit: might've posted the wrong link:

https://store.bianchiusa.com/index.p...mart&Itemid=26