Unable to connect

Firefox can't establish a connection to the server at www.squeaksource.com.

    *   The site could be temporarily unavailable or too busy. Try
again in a few
          moments.

    *   If you are unable to load any pages, check your computer's network
          connection.

    *   If your computer or network is protected by a firewall or
proxy, make sure
          that Firefox is permitted to access the Web.
-----

Does anybody knows what is wrong?
Maybe i need to install Firefox update? :)))

-- 
Best regards,
Igor Stasenko AKA sig.