
to CF
Three suggestions -
First, yes you do need to register each MAC address if you are using an STB -
read this for more info.
Two, if she is using an ethernet connection (rather than USB) don't bother with the NTL software.
Three, either get her, or suggest she gets, a router! Then she can share the connection without rebooting the STB. I, and many others here, use Linksys routers such as the WRT54G (wireless router), which works happily with VPN's.
HTH