These things aren't accessible to the LANDesk reporting engine and LANDesk has very little history capability.
You could try doing this by directly accessing the appropriate tables in the database (for unmanaged device discovery) and you can part of this if you mark items to be monitored for change via Inventory History. Neither are reportable normally though.
NetworkD have a tool called iRecall that does a lot of what you want plus quite a few things more. Might be worth a look if you need this type of information.
Mark Star - MarXtar LANDesk Enhancements
Home of Power State Notifier & Wake-On-WAN for LANDesk