Something very wrong here. 5000 visitors and absolutely no clicks?!?! No matter how bad your placement is this shouldn't happen. Social traffic is horrible for adsense as they almost never convert and they can get you smart priced. Is most of your google traffic coming from "images.google.com" cause this coul dbe your problem.
you getting zero clicks? as a rule of thumb i'd expect to get about 500 clicks from those 5000 visitors
I bet your traffic is from social bookmark sites and webmaster forums? If that's the case it's no wonder you get 0 clicks.