Casio CZ/ VZ/ FZ - Pro Series

Hello there, thanks to everyone who's tried to help me so far but I'm
still having trouble saving sounds out from my casio cz-1000....

here's where I'm up to


1. 
Got the midi implentation manual from casio (in the files section)
plus that txt help file at 
http://www.youngmonkey.ca/nose/audio_tech/synth/Casio-CZ.html

2. Got Bome's sysex program and also, midi ox,

3. I understand that to get the CZ to send its voice data out, in
needs to receive a send request.....

4. To receive this voice data I'm typing in: (into the sysex sending
thing)

F0 44 00 00 71 10 60

and then waiting for the cz's response.... .......but nothing comes
back in the sysex in....:(    (I'm pressing send/recieve on midi ox too)

So I tried typing in the following
commands too: 

7N 31

F7


And then I tried typing them alltogether, a la:


F0 44 00 00 71 10 60 7N 31 F7

......but still nothing!

Also the sysex commands for simpler things like the `tone mix' or `key
transponse'...... they don't work either.....I'm not very experienced
with sysex sending......Am I just being really stupid? is there some
`Recieve sysex' switch inside my CZ-1000?



I'm pretty damned sure the cz is receiving/sending midi data ok
because note data flashes up on the MIDI IN channel of midi ox/ bome's
send sx..... .plus other sysex files I found seem to change the patch
as well........ ..... I noticed those sysexs were a lot longer than
the ones I was trying....is that anything to do with it?

Please! can someone can help me.....I might be able to get on with
my life again... I love this synth so much but can't get any further
until I can safeguard my patches thus far (Incidentally, I'll
upload them to the files section once I figure this out)

many thanks :)

Alex