Heres what the programmer and interface boards look like.
There is some glare on the interface board, it has "CSA-01 HILO System Adapter" printed above the large black heat dissipator.
BTW: this thing became so hot inside the AT that I thought it might damage nearby boards; not sure if that...
Here's a picture of the device:
I sent this picture to Mathieu Benoit and he informed me that it is not designed to program EPROM chips.
Your suspicion was correct, I bought something on e-bay that was not what I thought it was.
I'm considering getting a simple willem programmer from...