Sorry Doug, I should have read the instructions through more carefully. The ones I followed were geared toward Windows and I believe I used WinRAR to open the original ISO first. I should have mentioned that.
Yes, WinRAR or most decent unpackers will do it. I've switched to 7zip myself and that will do it too.
When I need to do 1980's stuff like this, I plug in my USB-floppy drive and do it with the appropriate technology for the software. Really easy that way.
Although, I have run into one or two computers that didn't let me boot to a USB device.