Unzip the downloaded package and upload the Adsense Manager folder into your Wordpress plugins folder
Log into your WordPress admin panel
Go to Plugins and “Activate” the plugin
Previous installations will be updated and a notice displayed. If you have not used AdSense Manager before but have used AdSense Deluxe, you will be offered the change to import those ads.
“Adsense Manager” will now be displayed in your Options section and “Ad Units” appears under Manage.
For first step instructions, go to Options » AdSense
Import, create and modifty your Ad blocks under Manage » Ad Units