I'm no genius myself either, but I had ran into the same problem, I believe you downloaded the wrong file that happened to me the first time, i had got a 32bit instead of 64bit one, but anyway the file you will be wanting should be a .lin not .win, i believe you downloaded the windows host one not the linux host.
That is my best guess for you, from my experience, also with mine my hosting company had instructions on what to do to enable sourceguarding, i followed my hosting company instructions, they worked perfectly.