I bought a shirt. I got no confirmation email, receipt or even an order number. I just clicked on the unnecessarily large button and got a blank page. I've done it about 10 times on several different shirts. It's really startin' to anger me. I am just going to assume that I will never receive those shirts. Ever. I think I'm done with teefury. >:(
The blank page you report is a very unusual error- I've never heard of anyone else having that issue. But Customer Service will help you to find out what the status on those orders is :)