Hi Terry,

Just came across your question - hope this is still relevant. You can make a simple change to this contribution, which will remove the products and keep only the categories and sub-categories.

Edit the file includes/classes/category_list.php

Find line #82 - it should look like this:

PHP Code:
$this->build_products($category_id, $category_link,$level); 
Simply comment it out by adding a double-slash at the beginning:

PHP Code:
// $this->build_products($category_id, $category_link,$level); 
Save, upload and test - the sidebox should be product-free now.
Hope this helps