Using customization files - Fluxbox

Hello,
How can I use the customization files provided by users. I'd like to customize my Fluxbox and I recently downloaded a file Elfin2.tar.gz.
After uncompressing it I've got a directory called Elfin2 and in it theres a .cfg file.
What do I have to do with this file?..theres no instruction on how to use this file plus running the file from the prompt has no effect as the commands contained in that file doesn't seem to exist and I cannot rum those commands from the prompt either.

So what do you think could be the problem?...im using freebsd7 for ur info.