Link in her message
http://forum.canadianparents.ca/ubbthreads/ubbthreads.php

Link from main site at: http://www.canadianparents.com/
http://forum.canadianparents.ca/ubbthreads/

seems to know both www and non www
http://canadianparents.com/

Did not sign up for testing, but that would be my first guess as well that there is some issue with and without the WWW either before the upgrade or now after the upgrade.