Is there a way to know for sure whether you are firewalled or not?
On bt.etree, I you can see part of your ip address in the peer details list. It will show your port number in parens if you are firewalled. Plus, the port will not be in the right range if you are fw. Your addy shows up in red numbers.
Onother thing to look out for is the windoz software firewall. If that is enabled, the hardware forwarding is only half the work.