Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
I have to wonder what happened re the Tweet in MSFS, the support at http://www.t37sim.com/ seems to have dried up, yet I remember a forum post (when it was working) that a major overhaul was in the works. I recently reinstalled my T-37 through Flight1 but there is something wrong with it, switches don't switch and as a result the darned thing wont start.