Hi

If you are not able to get the Security Center to recognise Norton
fully:

Control Panel/Security Center, click on the "Change the Way
Security Center Notifies Me" link in the left pane.

Frequently asked questions about Windows Security Center
http://support.microsoft.com/?kbid=883792

More about Symantec products and SP2 here:

http://www.symantec.com/techsupp/sp2/faq.html

http://www.symantec.com/techsupp/sp2/support_doc.html

For Norton 2004 products:

After installing XP Service Pack 2, the message "Your computer might
be at risk . . . " appears
http://service1.symantec.com/SUPPORT/sharedtech.nsf/docid/2004070814522613?OpenD
ocument&tpre=&csm=no&src=con_web_nam

For Norton 2005 products:

I think Norton 2005 have a tamper proof setting as default, and this
cases the Security Center to not detect NAV 2005.

Symantec Security Alert appears after running LiveUpdate or installing
XP Service Pack 2
http://service1.symantec.com/SUPPORT/sharedtech.nsf/docid/2004070812114713?Open&
src=con_web_nam&docid=2004070814522613&nsf=sharedtech.nsf&view=docid&dtype=&prod
=&ver=&osv=&osv_lvl=

For Norton 2002/2003 products:

http://service1.symantec.com/SUPPORT/sharedtech.nsf/docid/2004090913261113?Open&
src=con_web_nam&docid=2004070814522613&nsf=sharedtech.nsf&view=docid&dtype=&prod
=&ver=&osv=&osv_lvl=

<quote>
Will this be fixed?

Symantec is planning an update, which will be available by
LiveUpdate. The update allows the Windows Security Center to
correctly identify the status of your Norton 2002/2003 security
products and give you the option of configuring how Norton
security products and the Windows Security Center alerts you.

When the update is available, this page will be updated.
</quote>

Open NAV and run live update.  (This works only with the 2004 and newer
versions.  Older versions will not be monitored by Windows Security Center).

Bobby

If you have Norton 2004, just run LiveUpdate and install the latest WMI
Providers update.  That will make the Security Center recognize your AV
software.
Other wise just tell it that you will monitor the AV software yourself.