I'm confused

I installed Fileman inside my /cgi-bin in its own sub-folder /gfm so it's in /cgi-bin/gfm . It's running fine...problem is that's the only directory I can see. I've tried various commands to change folders and I get 'folder does not exist'. Where it's installed is shown as the 'root' when I assumed it would allow me into the actual 'root' of my web server which would provide access to all of my files.

Where did my thinking go wrong? Does Fileman have to be installed in my document 'root' for that? Or, are there some commands on a list in some help file I can't find that i'm supposed to be using to navigate to that?

Please advise!