Ok, this proves you are getting out. I assume that you are able to get to places like Facebook and Google on the IPV6 side? Usually a little slow, but my facebook time at home is 100% IPV6.
You can't load the test page for the server? The server is on a godaddy server or internal to your network?
Did you configure the router as an IPV6 tunnel endpoint or the internal client PC as the tunnel endpoint?
Been a decade since I messed with VPN, but I will try. Using my providers 6RD to my DIR-825 at home, the thing basically configured itself. The only problem I had was DNS, did NOT like the ones at Hurricane(ping times were CRAZY!) and my providers were unreachable, once I went to open DNS and rebooted, it has been plug and play on Win 7 boxes with the IPV6 stack installed. I changed the DNS again just because open DNS server was on the East coast.