Real bummer, I got the following message when I tried to visit this site:

# ip address of your computer:
# ip space of your lan [if applicable]
# ip address of firewall/proxy server Note: The above information is p
+rivate and will not be shared with ANYONE. It is needed however by te
+chsupport to resolve the problem.
HTTP 403.6 - Forbidden: IP address rejected

Technical Information (for support personnel)

    * Background:
      This error is caused when the server has a list of IP addresses 
+that are not allowed to access the site, and the IP address you are u
+sing is in this list.
[download]

Perhaps you are running into a server security issue?