Patches and discussion for Ensoniq VFX family

Hello,

I misplaced the sequencer OS floppy for my VFX-SD some time ago and 
the sequencer has since stopped working. All buttons pressed related 
to sequencer functions say load the sequencer OS.

I tried downloading the V2.1 OS from the web and placed it on a DD 
floppy, then realized that it's incompadible with my VFX-SD V1.33 
firmware.

Can anyone help with locating compadible firmware that will allow me 
to run the current V2.1 sequencer OS; or alternatively, does anyone 
have an older version of the sequencer OS that is compadible with 
V1.33 firmware?

Karl