No XML in component list

I want to make my xcelsius project update automatically. I am trying to follow the procedure listed in "Connecting Xcelsius Dashboards to External Data Sources using: An XML Data Button" by Chris Bryant (2005). I do not have the XML features in the Web Connectivity folder in my Components window. I am running Xcelsius 4.5, which I thought was newer than 2005. Is there a different version? Is this the best way to update automatically? Any help is very much appreciated. Thank you.