This is just tragic. I've gotten to the point where I'm hesitant to buy anything from eBay for fear of receiving a machine in this condition. I'm so sorry this happened to you!
The driver software is actually CD Mounter Pro 3.2.0 by Software Architects. Works great, tested via my PowerBook 1400 (running 8.6) as my 2400 isn’t booting for some reason... grrr.
I'm not sure that it was. If it wassold as a retail package, it probably wouldn't have been packaged in it's own unique box, but rather as an upgrade disk included with 8.5.Mac OS 8.6 - Not sure this was sold on its own...