Yes you are quite right they did close, and after communication with them myself, they are now back up and running.
I spent 6 weeks at NAC last summer, and had a fantastic time. I was an hour builder also, and spent many happy hours flying their PA-28's around FL. NAC is the finest service I have received in the US whilst flying, and I have been to a number of schools there. I would recommend the place to anyone, it is a friendly professional run establishment.
Hope this helps you.