First, I think this concept is awesome and DO want to see this work and grow.

That said, when I installed and set up the plugin it caused some serious increases in my load time. (Jumped from 4.7 sec to 30+ seconds)
following the tutorial I could find NO js or css files that caused and error, but did get a single error related to an image loading on my site, specifically this preload request
<body onload="MM_preloadImages('images/Header.jpg')">
This was the default code and I tried it also forcing the full url in the code, same problem (eventually the image does load but takes a long long time.
I inactivated the plugin and still had issues. So I had to delete it and then after about 5 minutes the site finally started to load normally again (4.8 seconds).
I'd love to find a way to debug this or get this fixed but not sure what to look at next.
Thanks,
Brett