(sarcasm) No wonder, you don't even have a valid MAC address! (/sarcasm)
Seriously, it's like trying to hide a computer's local IP as 192.168.0.5, it's silly.
No sillier than that post..
But seriously, i've been at this all day and still nothing.. Can ping ipv6 hosts from the router/tools but still can't get Vista to accept an ipv6 address.. nor my Ubuntu laptop..