Do you have a wordpress.com blog?
Last night a long awaited unveiling of the oh-so-wanted wordpress.com stats plug in. I accidentally came across the post when I was just surfing around. I installed it a few moments later. The post says that stats will kick in approximately 20 minutes after you install it. I am not quite sure if that is entirely correct. Like I said, I installed it about an hour or so after the plug in came official yet it still reads that I have no hits.
Update: I forgot to put the footer tag in last night.[?]