You can download all the latest management packs from here:

http://www.microsoft.com/technet/prodtechnol/scp/opsmgr07.aspx

Find the software you need to extend the management capabilities of System Center Operations Manager 2007 to the management of the applications, systems and IT services that exist across your management infrastructure, and to share alerts across your various management solutions and System Center Operations Manager 2007:

• Information about Management Packs and Connectors for System Center Operations Manager 2007 from Microsoft and Partners
• Download Management Packs from Microsoft

For information on product licensing click here