Want to offer my version of a guide for programming one of these boards.
I know the info is out there, but I dont care.
Here you go.
From all the variations I tried, the only way I was able to program the board was using the ps2 to usb converter that revo provided.
With this adapter, I had to use a USB 2.0 port, as 3.0 wouldn't work.
When I did that, windows 10 decided to finally install Ps2avrGBU on my computer.
that is when I was able to use the bootmapper client from WKL.
http://blog.winkeyless.kr/155When you open the client, you will click download, then change that layout as you desire, toggle bootmapper, then upload.
In that order with those specifics.
After doing this, the keyboard had my custom keymap when using the ps2 adapter to usb 2.0 and 3.0.
However, I was not able to then restart my computer with PS2 and use the keyboard.
Instead I needed to reboot holding tab, and then my keymap worked through ps2