@radiobill: The MCE version will let you browse most of the same stations that are available on the SqueezeBox. The UI for browsing is slightly different though. The top level "Browse By Location" and "Browse By Genre" options on the SqueezeBox have been replaced by the "More Locations", "More Talk" and "More Music" options under World, Talk and Music radio.
You can also search for a station or program on our
website and add it to your favorites. You'll then be able to access it through "My Favorites" on MCE. The MCE version will only display playable stations (WMA, MP3, or local FM) so if you add a station that only streams in real player format it won't show up.