Tim contact David and tell him what ad it is - I don't see any because I have an adblocker installed. But I cannot see what ad you are referring to, so tell him by typing out which it is and the site it directs to.
He can go into the google settings and block a specific ad.
The moderators only have a few privileges here, and are not web gurus, just volunteers who can do stuff with posts, not the back end.
David has all the god powers there he owns the site
Hope that helps answer it Tim. His user name is david.