However, System Preferences on my Mom's Mac helpfully reports that "Others can manage your computer using the address 10.64.x.y", which doesn't do me any good. Is there a way to get an IP address that I can from Shaw's network?
10.64. indicates Private IP address, and a router being used? so Port Forwarding in that router should be what you need, but thats a Network answer, I do not know alot about how mac's operate.
I imagine that there are much more Mac knowledgable people around then myself...
Kevin