So I finally got a FW800 enclosure, and of course there are problems.
It has the Oxford 912 bridge chip, which provides the connection between IDE burners and USB 2.0 / 1394B.
The bridge chip is recognized without a problem, and the host board drivers (for Win2k) load without difficulty.
I can read from the 202J in the cabinet, but trying to burn anything immediately gives me failed write error messages.
I'm thinking I might need to flash the bridge board to something more recent, but don't know the authoritative site for downloading the appropriate flashing programs / .bin files for flashing.
Any pointers appreciated.