There was a big scandal a while back where people asserted that Google was trying to help cover up the Abu Ghraib torture scandal, because you couldn't find the photos in their image search. Turned out that it was just a simple case of Google not having updated their image index in months, and I wouldn't be surprised if that's the culprit here as well -- dig through a Google image search sometime and note the sheer number of broken links and 404s you find, and it'll become pretty obvious that they only update it once in a blue moon.
\r\n\r\nAs others have pointed out, do the web search; they update that continuously.