If you think you are backing up you contact list using Norton 360 version 4 or 5 you better double check. I just found out the hard way I was not.
I had checked the box for contacts and assumed they were being backed up. My hard disk failed and I had to replace it. I did finally manage to get the files that were backed up online but the contacts weren't there.
If you go to the manage backups window and click on the what tab and to the right you will see an edit file types then check that box. If you look to the right of Contacts and click on configure you can add a .contacts file type. Otherwise your contacts won't get backed up.