I use PHPFreeAds which is an amazing and somewhat complex (though easy to use) program for all your banner, links, text and whatever else you use web application for your site. You can break it down by campaigns, advertisers, zones, and even interlink links and banners to other campaigns.
You can specify the days you want what banners or links to show, or even how many times to show it as well as specifications all the way down to how many times to show a banner to a person(s).
Then there’s a very nice statistics section that allows you to view upload or print your stats…it will even email you the stats automatically!
Anyways, I sound like a car salesman LOL if you’re interested
in it or wanna check mine out let me know and I can get you the program for your site. It’s free and completly maintained by you!