Hey, I've been following along with this thread in my attempts to implement my first .fx file. I have successfully included the file and executed the script in my level.

(a bit happy because it's the first thing that's worked in a while)

Russel, you can download FX Composer for free at:
http://developer.nvidia.com/object/fx_composer_home.html
It's fun to play around with.

Thank you guys for this!!