How do I display child terms as a separate menu/in a separate display?

Question: I'm using Drupal 6.17 with a Fusion Starter theme. I've installed the following applicable modules: taxonomy, taxonomy_menu, views and cck.

I've set up a taxonomy vocabulary called "Categories" and attached it to the "Primary Links" menu through the taxonomy_menu module. In the Fusion Starter theme, the Primary Links menu is a roll-over and drop-down style menu. Once a user clicks on a top-level term listed in the menu, they see only nodes categorized under that term. Thus, the only way at present to access the sub-terms is to use the roll-over drop-down menu.

I would like to set it up so that the clickable sub-terms for a given top-level term display either in a block by themselves on the left side of the screen once the top-level term has been clicked on OR so that the clickable sub-terms are listed at the top of the content area of the page before the node-teasers listed in that category once a top-level term has been clicked.

I do NOT want to remove anything from the primary links menu, rather, I want these sub-terms to be displayed in addition to what is already available in the drop-down primary links menu.

I've tried to accomplish this using views, but I must be missing something. If you could provide detailed instructions on how to do this, that would be very helpful.

Thanks!
Lindsay