FWIW, I've seen the iPod ad too. It came as a .jpg, and is returned by too many sources (about 35) at a time, which are too many to block easily. The spammmers probably change the IP's often, so it's not worth the hassle of trying to keep up with the blocks. Just ignore them.

IIRC, you can get the ad by typing in a ridiculous search term in "Any Type." When (if) you get about 60 results for "blah-blah.wmv" and "blah-blah.jpg", the ad should be there.