Sure.... Check out this:
http://www.pprune.org/3995771-post1.html
As an ex FR employee, I can categorically state that they certainly do overbook! Up to 5% of the capacity, which means that the booked figure can be as high as 200. (based on the 737-800 configured for 189Y)
The staff are told to advise passengers who are denied boarding that either "a row of seats are unserviceable" or "we have to transport deportees" (which I guess is in keeping with the above statement). How do they get away with publishing this trash???