TIdFTP - directory listing above root

I have a site that has a directory structure like this:

database  (holds database files, etc., outside of the "webspace")
html      (this is the website)

I cannot get a file list using TIdFTP component for any directory
above the html.  When I log on, I see the database and html
directories in the list.
I can view a file listing in the html, but not the database dir.  Any
idea why?

FWIW, if I use EzFTP, which also uses TIdFTP, I see the same behavior.
 But if I use a commercial FTP program (WS_FTP), all is okay.