OK, time to cry "Uncle!"

... I've poked, prodded and searched for 15 minutes and can not find out how to delete a classified wanted ad that I placed previously. I found a source for the wheels I wanted, so it's time to boot the ad. I did find the link to mark the ad item as "SOLD" (sort of a weird concept for a Wanted ad), but that didn't result in my ad going away.
help?