When I look at my dashboard, the dates are correct. However, when I compare stats with a friend the dates for both our workouts are wrong.
For example, I see "Friday 03-12-2010". Since I didn't get Your Shape until 12-25-2010, that is a problem. :-) And comparing to my daughter, who worked out on the same dates as I did shows 01-12-2010.

Hoping this will be fixed as it is pretty goofy right now.