To start this report - select the affiliates you want to report on - you can select more than one if you want. If you leave this blank it will display the results for all suppliers.
Then select the date range you're reporting on.
Click on 'Run Report'
And that's it!
You should now see a breakdown.
You'll see URLs, the number of users (net users), an Event count (net event count), the Cost / Revenue/ Net /, and the RPC (revenue per click).
Hover over the details on the event type it will even give a description of the events!