No need to return the Soarer's since it's doing it's job. You're using a keyboard you wouldn't otherwise be able to even plug in.
The instructions & programming tools are all in the first ZIP file in the list of ZIP files in the first post of the thread I pointed you to above titled "Soarer_Converter_v1.0.zip" . Once you have the programming tools unpacked & ready to go the instructions will make more sense. It's a multi-step process:
Write your conversion code in plain english as I did above
Use one of the tools (scas) to convert your code file into a hex file for Soarer's to understand
Use another of the tools (scwr) to write (send) this newly converted file to the converter
Use your newly programmed keyboard. No need to reboot or un/plug the keyboard, it's ready to go right away.
Soarer's instructions in that ZIP file are very good
Maybe
this will help.