goldenarms - 10:46 pm on Oct 28, 2011 (gmt 0)

I don't know if it's the same on your screen, but if you go to:

"ad networks" -> Dimension -> "Bid type"

You might see - in my case - that all 3rd party networks operate on a CPM bid basis only. So clicks from those networks won't make a difference to it's respective eCPM.