EmulatorII-list

I've got a Mac Classic II & MAC IIsi..

I'm having a world of pain trying to get either of them to see s SCSI 
CD drive..

(I've tried the obvious one of booting the macs up with a CD in the 
drive... the only CD i've tried is the Big EII CD )

I've tried to put the drivers in, but they are compressed.. I don't 
have the compression program (Stuffit) and that is supplied as a 
binary.. 

The MAC CLASSIC is running 7.0.1 and the IIsi is 7.5os

As I only have a PC connected to the net, I don't know how to install 
stuffit, so i can uncompress the SCSI drivers etc..

Please please help.. this is making me turn into a nut case.

Regards
Mike