Edit: I see a note on the known technical issues page about delayed stats so they are on it.
[edited by: Kobayashi at 8:06 pm (utc) on April 25, 2009]
Also mentioned in the thread below, earlier this morning (I guess I should have started a new thread, heheh.)
AWA's Alerts
[webmasterworld.com...]
The latest I hear is that the underlying issue is resolved, and stats should be caught up by the end of the day, Pacific Time.
Ads have been running as normal all along.
Best,
AWA