Just opened my new arcade box and found the new drive inside

drive info.......DG-16D2S-09C
date.August, 2009
HW ver. A0A2
FW ver 83805C
I managed to dump something using Lo83info.exe with my 3249 sata card and used fwz decrypter.exe to get my key.
But when I tried to do a manual spoof with JF 1.66b
It tells me that the dump is bad

Ive been reading that the new drive (i.e MINE) cannot be flashed yet??
Any ideas guys or am I just gonna have to wait for the gods??
Thanks in advance
Alex.