Good day.
I see where I went wrong with my tutorial, I did not say that fluxbb must be downloaded and installed.
this is why there is confusion. I have updated the tutorial
http://www.dominion-it.co.za/development/ForumIntegrator
added
FluxBB must be installed, you can download it from (We developed this with version 1.4.8)
It is best to install it in the root of your website under a directory for example fluxbb
and also
functions.php file found at : <directory where fluxbb is installed>/include/functions.php
I hope this make more sense ? If not please let me know.