Norton Account Problem

When I go to my Norton Account, It lists Norton Systemworks, Norton Antivirus 2010 and Norton Antivirus 2011. The only Product I currently have installed is Norton Antivirus 2011. I keep getting emails advising me that the virus definitions for Norton Antivirus 2010 have expired. I could find no way to delete everything except the currently installed Norton Antivirus 2011 from the norton Account list.