Best practice for upgrading plugins has always been to first deactivate the plugin, upgrade, and then reactivate the plugin. For site admins of WPMU sites, this is a laborious process, partly because you’d need to go through each blog to determine whether or not the plugin has been activated. This plugin provides a snapshot view of which blogs are using any particular plugin.
For sites that are using Plugin Commander to manage plugins, additional columns for the Plugin Commander settings of Auto Activate and User Controlled are included.
For sites that are using Plugin Manager, additional columns for the Plugin Manager settings of Auto Activate, User Controlled and Supporter Controlled are included.
Data is regenerated on viewing the plugin stats page if the data is more than one hour old. Data can be regenerated anytime via the “Regenerate” button (as seen in the above screen shot).
Grab the code from wordpress.org. Enjoy!