Up2date--fatal error communicating with server

[G. Vincent Castellano]

Starting from RH9, upgraded to FC3T2, then FC3T3.  I started Up2date, updated 
the up2date utility itself, then restarted to get the rest of the updates.

Then I get:

There was a fatal error communicating with the server.  The message was:

An HTTP error occurred:
URL: 
http://fedora.redhat.com/download/up2date-mirrors/updates-released-fc3/headers/header.info
Status Code: 404
Error Message: Not Found

Do I need to do something manually to get updates working again?
--gvc