Patches and discussion for Ensoniq VFX family

is there anybody out there???
i lost my original os-disk (version 1.37 k 2.20)
my vfx-sd always tells me: ...sequenzer must be loaded
i have the vfxos2.10 but my ensoniq is too stupid for that - if i 
want to load it he says:
...incompatible os version
is there anyone who can send me the o.s.1.37 or a compatible version 
via e-mail?
i have the ede109.