Another option is to use the Openx adserver (just google it, I can't post links yet)

It allows you to setup ad-zones on each site, and then look at the reports later.

The reports aren't quite as fancy as what you found, but administering all the ads in one place is a god-send if you have more than 2 sites....

It may not be quite what you need, but is another option.


Good luck -

Matt