I'm not sure what happened for you, but the link in misc.py leads me to http://effbot.org/media/downloads/PI...in32-py2.7.exe after a few clicks. Is that what you installed?

Looking at j2a.py the error you're getting means the j2a file can't be read. Are you sure the path is right? Are you maybe entering "Anims" instead of "Anims.j2a"? The script needs the full filename, including extension.