We're currently running our Netbackup 4.5 MP6 server on an old IRIX box. I want to upgrade to the latest 6.X version of Netbackup server, although it will now be on a Windows 2003 server instead of an IRIX server (the IRIX machine is getting retired). Is there any specific upgrade procedures, or can I just install the new Netbackup server and import the policies from the old one?