My guess is that you haven't configured the user in htpasswd.users to be able to view or execute any commands via the web interface. In cgi.cfg you'll see lines like:
after which there will be a comma-delimited list of any users you want to have access to those things. Make sure also that, if the user you've added to htpasswd.users is already there, that there is no # in front of the line, as this will comment out that configuration option.
Edited Tue Feb 14 2006, 09:07PM ]