o_O TSI directed me to Teddy Boom in Toronto to upgrade 18.104.22.168
It needs "equipment" to upgrade and it involves opening up the modem.
I believe there's someone that can do it @ Ottawa as well. Sorry, I just can't remember the name right now. Do a search in the forums and you might be able to find more about this process and what it involves.
Edit: the other person is mlord »Re: Upgrading firmware on my Sb6121