Panda, it looks like your response fixed the issue
The problem was actually with the MUI file and it was not having the same name as the style. Prior to your response, I had used VSB to change all those fonts manually without luck. I was able to apply the theme finally but it was broken completely.
I extracted a fresh copy and renamed the MUI file and that did the trick, never knew the MUI file was this important.
Thank you for leading me in the right direction.