When I was in Biloxi back in january, February and March of 2005 they were definately off the air, even though a call to the station claimed they were on the air.
Their entire building was completely demolished and had been wiped away. I do beleive the tower was gone too, the only thing that was left standing was a few satelitte dishes. However, in the pictures I used to have.. you could tell exactly where the building had been.
Ironically, sitting at the end of their driveway...... was their Harris 5000 Watt Transmitter all water logged.. was probably slavageable, but just left there for junk.