I noticed you have an installer for Orchard but not Ubraco. Does this mean you have a preference for Orchard? Can you give us a brief comparison of the two?
We have no preference in the cms. The control panel installer uses the microsoft web app gallery and we take what is available there and make available the apps that worked when we tested them. If you want to learn more about orchard or umbraco, its best to visit their websites.