I finally got it to compile, the original Overviewer documentation didn't specify which versions of Python and PIL to use. I wanted to ask your permission to post the compiled binary, seeing as you ask for donations on your site, and I don't want to take anything away from your work.
Looks awesome, I've been using it on your site.
I see that you also have the source on Github, would it be possible for you to post a compiled version? I'm having trouble getting it to compile as per the instructions on the original overviewer project.
Thanks for you hard work.