Hello,
I'm running the Steam release on a Windows 7 desktop, and I did move the Steam installation to a non system directory.  Had no problems with that.  I then proceeded to download the mods that were given for the "Minimal" preset setup.  I did download the files.  I also unzipped (which I'm not sure I needed to do), and when I rerun the mod list, I have only green and yellow items on the mod list, so it looks like I'm clear for the next step.  However...when I click on Run Bootleg, the command prompt does appear for roughly 5 seconds.  The window then closes, and nothing else happens.  I'm returned to the Bootleg program.  
Something I'm just now noticing in the instructions that may have been a problem is that I had an internet explorer open as well as some mozilla firefox windows.  Where do I need to go from here?