danwhistler: I came across these (a) http://www.portforward.com/smc/7004wbr.htm, (b) http://firewalling.com/smc/7004wbr.htm for your router. It appears it may not use UPnP. At least I couldn't find any mention of it searching. And it is essentially almost identical to a D-Link model. I know you said you know how to do this anyway.

Shaw has been known to filter or block p2p sharing in some areas.

Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there?