19. A computer system that previews a content package file containing references to content files, the computer system comprising: a portal server that fetches references to content files from the content package file, wherein the content files are separate files from the content package file, fetches the content files associated with the references, replaces the references to the content files with content extracted from the content files to create a combined file, removes the references from the combined file; and creates a preview screen of the content package file and the content files using the combined file; and a client that displays the preview screen, wherein information rendered by the preview screen displays at least some of the content extracted from the first level content files and content from the content package file, wherein the preview screen displays a version of the content package file modified with content from the combined file, wherein the preview screen displays the modified version of the content package file prior to the portal server importing the content package file and the content files from the client.
21. The computer system according to claim 19 wherein the preview screen displays the content from the content files in a hierarchical format.