Some time in April 2010, the Mirror's Edge website was changed in a way that prevented easy access to the game's stats from the web. The Mirror's Edge websites own leaderboards section is also no longer working. Sorry about this.
The stats probably won't come back up. However, I plan on doing this same thing for Mirror's Edge 2, whenever that comes out.
Thanks for supporting the site. Feel free to send me an email at firstname.lastname@example.org, especially if you want to be notified about the site coming back up.