Several issues here. First, what is the name of the boot-sector virus? What do the programs tell you? Second, what virus definition are you using with Norton 2002? If you have an outdated definition file it may NOT detect the virus.
After you have resolved these two items try the www.symantec.com or www.MacAfee.com Web sites and look up your virus name. They both will list instructions on removal.
Remember to always update both your antivirus software and definitions. Without being both correctly installed and maintained, any antivirus program is useless.
For more information on this topic, visit these other SearchSecurity.com resources:
Executive Security Briefing: Beating malware: Beyond antivirus software
Featured Topic: Virus busters
Ask the Expert: Best practices for implementing antivirus software
This was first published in March 2002