you can find in your liveupdate policy
select policy=lilveupdate
select liveupdate component
select each one, and check the revision
all the latest one are listed here
http://www.symantec.com/business/security_response/definitions.jsp
the latest NTP is jan 19 2010 r1
on the same page you wil find
Symantec Endpoint Protection Security Updates
Proactive Threat Protection: 1/25/2010 rev. 19
Network Threat Protection: 1/19/2010 rev. 1