ad-sense app, not working??

Hi, i was wondering if you could explain me how the AdSense user app works on EasySocial, i tried on both the 1.1.6 and the 1.2 rc1 version of easysocial and for both the sites the adsense doesnt seem to display any ads.

I simply installed the App from the user applications, and pasted the code inside , once i hit save tho, and go back to the app settings, the code simply disappears..

any idea? maybe im using it the wrong way?

Also, when it does work, where should i expect to see the ads?

regards
-a