I dont seem to have the same problem as everyone else. The problem I am having is when I click on download from the content page i get a message that basically says Internet Explorer does not know what to do with the file. Please select a list from the Internet but obviously content manager doesnt show up.
This usually seems to happen if you installed trainz without running the installer as administrator on vista/windows-7, the registry entry for the helper for CM doesn't get installed.