[Zope] Manage tar-file and store them externally

Hi, i am just a beginner with Zope and trying to setup my first Zope Website. I cant to manage Files (.tar, ...) on this Website. Could you tell me, how you implemented your Website for Download (and the member area), where i can scan through the archive (.tar, .tgz) and download it. Additionally i want to keep the file seperatly on an filesystem and not in the Zope Object Repository. Thanks very much, Ralph (Zope Member Name: ralphg)