To put the google AdSense o­n your PostNuke site there are several ways, the easiest and cleaner way I have found is this o­ne, if you have a better please tell me.
First things first, to use Google AdSense you must be a valid subscriber to the advertising program o­n google.Follow this simple steps:
1- Go to administrator menu;
2- Select the system Bind;
3- Select the blocks options;
4- Choose the Title of the Block (ads is a good ideia);
5- Choose the model, in this case is CORE/HTML;
6- Choose the position (on my case is left);
7- Choose Collapsible;
8- Choose expanded;
9- Choose language All (to make avaliable to all languages);
10- Click o­n update.
When you click o­n Update, it now permits that you put your Google AdSense code in the Content Box.
After that just click o­n update and your block is working.
You can latter change the side and the position of your block, or use multiples blocks (just create another o­ne).
There are some sites that are actually charging for this information, so If you are happy with this leave a tip :) , or buy me a book on amazon wish list they are cheap