The zip file contains the component, and installation manual.
Various parameters are provided in the admin section for configuring the display of chart in the front end:
Title For Page: Text to be displayed as the header of the page.
Title for Root Category: Text to be displayed as the title of Virtue Mart Default Root category.
Tooltip for Root Category: Text to be displayed when visitor hovers over the root category node.
Display Chart: Whether to enable or disable display of chart in front end.
Show Scrollable Page: If set to true, visitor will be shown a scrollable page. Enable only when your site has a large catalog. This is for displaying whole chart in a single page if your VirtueMart catalog has many categories and products.
Width Of Scrollable page: Width of the page. This will effect only when scrollable page is enabled.
Height Of Scrollable page: Height of the page. This will effect only when scrollable page is enabled.
HTML Allowed: If set to true, names that includes HTML tags will be rendered as HTML.
Enable Tooltip: If set to true, number of products in a category will be shown when the visitor hovers over the category.
Collapse Allowed: Determines if double click will collapse a category node. It will hide all the subcategories of the selected category.
Show Category Url: If set to true, visitor will be shown a link to category page.
Show Products: If set to true, visitor will be shown the list of products inside the category.
Show Product Url: If set to true, visitor will be shown a link besides the product name to product page.
Show Headings: If set to true, visitor will be shown a heading for distinguishing between product and category.
Heading Color: The color of headings.
Font Size: Size of the font.