Editing XML using XSL and ASP

http://www.xmlfiles.com/articles/michael/htmlxml/

The above link is to a tutorial on how to create an xml file and save it from a web browser, its quite wordy and isnt very explanatory, the very first thing it tells you to do is Instantiating the Microsoft XMLDOM Object, well I have absolutley no idea what to do with that, if someone could help me out?