Banners
PostNuke has a little and basic banner system integrated, so you can have your own banners stats and control them in the way you want. The section is self explanatory and doesn't need a big manual page, all options are clear.
Current Active Banners: Show the banners that are running right now in your site. The field Impressions show you the total impressions made for that banner, Imp. Left show the impressions left, Clicks s the number of click the banner received, % Click is the percentage of click based on the Impressions made, Client Name and functions are self explanatory. In functions you can Edit or Delete the selected banner.
Finished Banners: When a banner reach the impressions automaticaly stops and move into this table. In this table you can see total impressions made, how many clicks received, % of clicks, The date when started and finished the banner, client name and the option to delete it.
Advertising Clients: This show all the data of your clients and how many active banners are running at the moment.
Notes on adding a banner: If you want the banner to have unlimited impressions, just write 0 on the field Impressions Purchased.
Client Statistics: When you setup a new client, you can asign a login and password for it. With this info the client can view in real time the stats page for his banners by visiting this url:

http://yourdomain.com/banners.php?op=login

In that page the client can change the banner URL for clicks and view the stats in real time, also he can request an automatic report by email without your intervention.