If you log on to http://www.cafepress.com from an Australian computer you're now redirected to their new Australian site.
It looks like they're now set up in Australia because the prcies for T-shirts and the like seem quite a lot lower.
not sure how things work if you already have (or want) a shop on their US site to sell to Americans.
Edited to add:
A while back I set up a site with some Mike Dutkiewicz art items - and its now showing up on the Australian site with the lower Australian prices.
http://www.cafepress.com/ianscomics/1888741