in the stats where the orders are tallied, it would be nice to be able to either get a list of the actual order numbers (clickable) and/or to show a total value of orders with this referral source on them.

By the way, if someone signs up with a referral source, what is the behavior of the referral sources section in the checkout, is it pre-populated or in some way overriden by the signup source? I'm asking this here because it might be a consideration when adding up the order values.