Who Sees Ads Support Needed

I am running the "Who Sees Ads" plugin to allow me to serve adsense code without my members seeing it. However, when you click the theme preview, it shows a big ol' green box that says "Ad Placeholder Google Adsense ad disabled (on preview) by Who Sees Ads. Regular visitors will see real Google Adsense ads."

How can I get rid of this? I don't really want my members knowing that I am serving adsense blocks on their search engine traffic. I need this to be invisible to my users.

thanks