[Simon]

In the stats once you have a sale you can click on the referring url link to see where a sale came from. They also have a traffic optimizer where you can set up tracking to see where traffic is originating from.

Thanks for that info. Do you know if the traffic optimizer also only shows which referring urls the sales come from or does it also track all the clicks that did not result in sales (which is also valuable information)?

Edit: I'm looking at the new "Profit Optimizer" now, which evidently has replaced the Traffic Optimizer. I really love when affiliate tools change so you have to change every single one of your links if you want to use them:

Please note that in order to take full advantage of the Profit Optimizer's new and improved
features, you need to add your tracking tags to the links of promo tools in a new way.