Use Powershell to get all installed Management Packs
SCOM 2007
Get-ManagementPack | select displayname,version | export-csv c:\temp\mpk-2007.txt
SCOM 2012
Get-SCOMManagementPack | select displayname,version | export-csv c:\temp\mpk-2012.txt
Use Powershell to get all installed Management Packs
Get-ManagementPack | select displayname,version | export-csv c:\temp\mpk-2007.txt
Get-SCOMManagementPack | select displayname,version | export-csv c:\temp\mpk-2012.txt