You need to open a console window and navigate to the same directory the .exe is in (assuming you are on windows).
But in your case I would suggest just downloading the -opengl applications in the download list as it will do about the same thing and you dont need to mess with the console.
Sorry, its possible your PC is just not up to snuff if the -opengl builds are failing.
There is not much more I can do here, but if you want to DM me on the Weight Gaming forums I would be happy to see if I can look into the issue a bit more with you.
