[Plugin: WP CSS Dropdown menu] Problem Getting it Up and Running

I think I’ve done all I can to get this plugin running, but it doesn’t seem to be working. If you’ve had any successful experience with this, I would appreciate help.

I activated the plugin, put the call in the header, and copied over the CSS. The only thing it did was to insert a hierarchy site-map looking block at the top of the page.

My understanding is that this plugin is supposed to create an “ajax-like” drop down menu w/o javascript linking children pages to parent pages. That is just what I want. Any help is appreciated. Thanks!