Hi Lee,
It depends on how your server is configured. You know, your site is hosted
in a server, like in a particular folder on your Pc. Usually, your provider create
a folder for your account (sometime its yous domain name, or your account
number, etc), that is called your "root" directory.
When you log with your ftp program, you're In that (root) folder, and a number
of subfolders are created by your provider, example:
public_ftp
public_html
stats
...
public_html is a common folder name for your website file (html, php, etc).
That is why example point to that folder, but your particular case could
be different!
Hope this help.
Jacques