We were only able to update the Retail version to Win 8 compatibility as we no longer had the source code for the Steam version to update. We would have to make a brand new trainer for Steam for this 7+ year old game.
I would suggest trying CoSMOS and hacking the game yourself. It's simple to use and plenty of beginner tutorials --> Link
[Edited by PWizard, 9/18/2016 7:53:56 PM]
lol, I'll give it a try, but the way older games handle in Win 10 I expect It will be misery