This level of analytics isn't currently available in the version your team is rolling out. This might be more related to our enterprise deployment and how it ties in with the SAP BI solution. From a best practices stand point, we like to measure progress not by number of uploaded files, but by total number of users logging into the system daily and how much they are either contributing to existing content or creating new content. You'll find metrics like that within the community manager reports to help take a pulse of the community.
Hope this helps.
I need to do this because we're currently migrating files over to Jive and I need to measure progress. I'm following user "Steve" for example, so I get notifications in my inbox whenever he's uploaded a file, but it's not easy to count this way. I looked in Community Manager Reports but nothing seemed to over this trick. Thanks!