Akai S1000 / S1100 samplers

Please help me.
I'm trying to update the OS on my Akai S1100 but seems impossible. The AKAI official 
website that has a downloadable version is not working, I've tried on various PC computers 
to format disk but the AKAI will not recognise it yet the drive is working with other 
floppies.
Does anyone have similar problems? If anyone has a copy I'll be glad to reimburse the cost 
for sending it to me.
thanks to you all