nancy,
I've moved your posts to the Install topic folder of the forum and merged them into a single thread. This is a forum for customers helping customers, not support.
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
However, since you purchased OneCare online, you now need to install it. Go to http://onecare.live.com and download and install the trial. Once it has installed, click Subscribe within OneCare and sign in with the LiveID you used to purchase OneCare with. This will activate your installed copy with your subscription LiveID.
-steve