What software is used to manage the web site?

WebGUI is the content management system (CMS) used to mange the HTVFC web site. "WebGUI is a content management platform built to give average business users the ability to build and maintain complex web sites. It is modular, pluggable, and platform independent. It is designed to keep the management of content in the hands of those who create content, rather than take up the time of busy IT staff."

How much does WebGUI cost? 

WebGUI is OpenSource, and available for free. You can download it from www.webgui.org.

Do I have to install any software on my computer to create or update the web site?

No, the software is installed on the server and provides a easy to use interface that looks like a very popular word processing program to edit the content.