Hi,
The IDEFix that was written to the Emergency-Disk will work regardless of whether it is still installed on the hard drive. You will get "Cannot open atapi.device unit 1" if the unit number is set incorrectly on the driver CD0 in Devs/DOSDrivers of the Emergency-Disk.
Anyway, I've emailed you my Emergency-Disk as an ADF file together with ADF-Blitzer in case you need that to unpack it. I've set the driver CD1 to unit 1. It's worth giving it a try mate :-)