Interesting rankings... Haas and Tuck both fell a little bit, and Stanford is still #6. Like kwam and river said, it really is about the specific details in each of these rankings that will help students select schools, not the general rankings. For example, for someone choosing between Kellogg and Haas, it would be silly to go to Haas if you want to do GM, Strategy, Finance, or Consulting. But it would also be silly to go to Kellogg if you want to do high-tech, entrepreneurship, or non-profit/clean tech. Each school has its strengths and weaknesses, so pick the one that fits what you want to get out of b-school.
As for some of the numbers, like % getting jobs and average salary, a school like Haas with a relatively large chunk of people going into non-profit or startups would definitely have a lower employment rate or lower salary than one that supplies mainly to consulting (and formerly banking, before the meltdown).
It would be interesting to see the stats in 2010 when they reflect the financial meltdown. Will Wharton, Chicago, and Columbia remain at the top over Kellogg, Stanford, and Harvard? I'm guessing probably not as much.