OK, I tried the USB boot ISO. Although it does seem to work with the DSS Lite, it doesn't do what I want it to do. It does not work with a motherboard that doesn't already recognize the USB module.
I tried on 4 diferent old mother boards that will not boot from USB - well the CD boots and everntually presents a message saying: "No USB module found" and that's as far as it gets. And yes the flash drive was plugged in to the USB slot and the light was on indicating it had power at least.
I also tried it on a newer laptop. I set it to boot from CD and it did and then continued to load the DSS and I got the console screen telling what my IP address is etc, so that worked. But what's the point - that laptop boots just fine straight off of the USB module without needing help from the CD. I suspect this helper CD is for certain cases on newer machines that do see the USB drive directly but just don't allow it to boot.
If anyone figures out how to boot and use the USB module on a machine where the bios doesn't see the USB disk. I'd sure like to find out how you did it.