moss-2007-sp2

Verify SP2 Install for MOSS?

I have 12.0.0.6421 showing in Central Admin, which would seem to indicate that SP2 was installed. However, when I run an STSADM command to backup a site collection, I do not see the message informing me that it's "setting the site collection to be-read only for the duration of the backup" as described here: http://bobfox.securespsite.co...