Typing this on my droid so I apologize ahead of time. I downloaded stanrc's blackmod and installed everything but it doesn't do anything for some odd reason. Other themes have worked fine... its the weirdest thing.
Have you tried resetting back to the stock theme between changes? i've heard that it might cause issues if you go straight from one MM theme to another without going back to stock theme first.
When you say it doesn't install, do you get some sort of error, or does it appear to work but nothing actually changes?