Well, sort of. A temporary version is up at:
http://members.cox.net/davidculp/hangar-temp.htm . The aircraft packages themselves are hosted at mediafire (thanks for the tip Zexe!). Eventually I'll get the nice-looking hangar back up. Please let me know if anything is broken or incomplete.
AFAIK all these aircraft work with FlightGear 2.0, and remember that you need DavePack.