There is no difference in the installer for Xeams Community and Enterprise Edition. It will run as if you have purchased the Enterprise Edition for the first 30 days. It will then get converted to Community Edition unless a license is purchased.
Tony,
What build number are you using? If you are using a build lower than 5925, upgrade to the latest version. If you are not able to do it automatically, visit http://www.xeams.com/ManuallyPatching.htm to do it manually.