yeah, here's how you'd do it...
3. click "manage" button
4. click "queue" tab
5. click "Get Mail" button
This will load a new page (tab) with the functionality described. Since it's showing the progress of email being downloaded, you'll need to make sure there are emails to download, else you won't see anything. To do that, under "admin" in the top nav, choose email blast. This will send a bunch of random, yet valid emails to the system. Give it 5 minutes or so for the emails to be received by the POP server. There are 4 emails pending right now.