I had to change the filename of the .app to just "MtE.app" to get it to work (I was getting a "file not found" error before doing that). Also at the "chmod a+x" step, I gave it the full path and not just the filename and that did the trick!
Ah, I see where I went wrong. I didn't add the full pathname as you said. Thank you so much for the help! I got it to finally work!