The following was posted today on the front page of the US Mint catalog website:
February 7, 2008 – Due to the severe weather in the Tennessee area, the United States Mint is currently not shipping from its fulfillment facility in Memphis for the next one to two weeks. Expedited shipping will not be available until further notice. We apologize for this inconvenience. Please be assured that we will ship your orders as soon as possible.
Orders continue be accepted from the website and the toll-free ordering line. The orders will be processed a week or two later.