Akai S1000 / S1100 samplers

Hello
i have a s1000 and a s1100
and i have iomega ZIP and external Syquest

the problem is
when i try to open the drives(zip, syquest) on Computer (windows 98 
computer)
it says "disk not formatted"
if i DO format in computer, the s1000 won't recognize the driver 
and if i format in the S1000,  computer won't recognize the driver

what should i do??
i can do midi transfer but its way too slow for me
because i do a lot of chopping

im strugglin with this problem for like 6 month
please help me!!!!