This menu will work only on Internet Explorer browser. Other browsers will show it as a text link. You may use it on IE specific pages.

This extension will store all the menu information automatically. It also has option to save the menu and style information externally. So you can reuse the menu without having to redo.

A cross browser version is in the wish list. It may take some time :-)

To test, just use the default settings, add the menu and preview in IE browser.

If you are interested in this type of Hierarchical menu to work on both IE and NS, check this site http://www.dynamicdrive.com/