Note: currently this is additional information for the official installation document at  (user/pass: guest / guest)
Install Prerequisite Software
The link is on the main page of freeside: Freeside Main Page.
Copy the .tar.gz file to an appropriate directory (like /usr/src). Run: gunzip filename.tar.gz Run: tar xvf filename.tar
Create a user and group 'freeside'. (TODO, say how)
If installed from an rpm; run: su - postgres when it says to run su postgres.
When it says to run a seperate iteration they mean an entirely seperate instance. See Seperate Iteration of Apatche.
TODO: Section about conflicting port 443 (SSL with Apache).