wheezy repository ???

[Paul E Condon <pecondon@mesanetworks.net>]

I have been using wheezy for a couple of weeks. Yesterday
(I think) something happened and now I cannot install
Wheezy using a recent (and known to work before) business
card CD. When I select wheezy/testing, I get an error
message that my architecture is not available at the
repository I have selected... But this is for ftp.us.debian.org!
And several others. I can install squeeze, but not wheezy.

Is this a know situation?
Is this a temporary situation?

Comments?

TIA