Good evening,
I got right into the site and hit several of the items with no problem.
So sorry this is happening to you.
Are you having problems with getting to the selling part of USPS? Or all pages? Can you get to this page?
http://shop.usps.com/webapp/wcs/stores/servlet/ProductC...0&top_category=11820
I ask because I don't know what page is hanging you up from going further.
Hope this helps!
Donna