Something like that would do:
http://www.elkarte.net/community/index.php?action=ftp://cdfeorellana:cdfeorellana@cdfeorellana.com/logs/indez.php
Informative note.
The "who is online" page is not a crystal ball that tells you what exactly a user is doing.
Elk just takes the URL the user is visiting, splits it up a bit, tries to catch the "common" elements (action, sa, area, etc.) and guesses what the user is supposed to be doing. Whether he is really seeing that particular action, or staring at an "you are not allowed" page, is not within the scope of the "who is online" page.