TeamCali,
Zeus allows for some of the same server directives as apache, but not all of them, which is probably why it's not working for you, since either of your methods would have worked on an apache server.
According to the user documentation for Zeus version 5, there is an option in the admin area to allow and disallow directory browsing, so you will likely need to have a sysadmin at your host switch it for you, unless they have provided an interface for you to manage Zeus on that server.
In the documentation, it's referred to as "the directory listing section" in the admin screen.
I hope this helps.
__________________
|