If you're talking about putting in standard adsense ads, did you follow the
Ad placement sticky?
It worked for me.
I tried it out first with a static placeholder image of the same size instead of the adsense code to make sure it was appearing in the right spot. Once that was working, I substituted in the adsense code to replace it. Sometimes, it takes a short while for Google to start delivering ads, but in that case you should see an empty space where the ad should be.
If you're talking about the Adsense Revenue Sharing module, however, I haven't tried that, and probably won't.