I cannot find a way to delete the Backdoor.Sinit virus . Is there anyone who knows how. My Norton 2004 cannot repair, quarantine or delete it. HELP

http://securityresponse.symantec.com/avcenter/venc/data/backdoor.sinit.html has the live update your Norton needs to remove it.

You should be running live update every two weeks at a minimum; more if you open a lot of email attachments.