If you had a paid subscription and then transferred that LiveID to Qwest, when you canceled your Qwest service, they terminated your subscription, since they provide a free subscription to OneCare as a partner. I'm not sure what the best avenue for resolution would be, but you might start with Qwest support and also try OneCare support via email.
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
Unofficial path - send me an email at sboots@mvps.org with a subject line including "OneCare" (to get past my spam filtering) and in the message body, tell me your forum nickname, and paste this link http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=3506310&SiteID=2. I am not online 24x7, so you may be waiting for a reply, but I'll see what I can do.
-steve
