My Xymon installation is on an AWS instance of Ubuntu.

I have the ESXi add-on installed (http://xymonesxi.sourceforge.net) and it's reporting data from my VMware server. But, it's not reporting very much data. It's only reporting conn, http, info, sslcert, trends and vmware. Sdd and snapshot don't have any data in them, and disk doesn't show up at all. Is there something I need to be configuring to get these stats? I installed the add-on per the included instructions without any trouble.