If your thinking of installing Webguide and want some assistance checkout the guide on Microsoft CE Installers blog. The guide explains some of the detailed setup options that Webguide has, including how to setup port forwarding (one of the trickiest parts of the setup for new users)
It's good to see Microsoft promoting Webguide to the CE installers, its a great addition to Media Center and one of the first application I install on a new Media Center build
Consumer Electronics Installer Blog : Installing & Configuring WebGuide