Having recently got into DCS, i had the exact same problem, fortunately after much googling and a ton of trial and error i worked out a solution.
Download Icemakers Easy Monitor Configurator from this link. The actual program doesnt work anymore, or at least i couldnt get it to work, But the lua files do!. I havent compared these to the instructions at the start of this thread to be able to say what the difference is, but it works ;p
http://www.digitalcombatsimulator.com/en/files/270123/
After installation, the files you want are in the folder : \\Easy Monitor Configurator\Files\Sources\ED_A10C\Cockpit\scripts
Copy those to \\DCSWorld\Mods\aircrafts\A-10C\Cockpit\Scripts
Backup first as always :)