I did a little more research on this one. Browse out to this registry key and go ahead and export it before we do anything.
hklm\system\curent contorl set\services\SNMP\parameters\extensionagents
Any of those keys in there with the value that has "SOFTWARE\VERITAS\......." change those to "SOFTWARE\Symantec\......."
I'm pretty sure that this is the problem and that should take care of it.