[Zope] CMF and views newbie question

Hi, I created a new CMF Type (copying the "CV" example from the Beehive Book - of course, I know, this is concerning CMF 1.1 on Zope 2.4.0 while I have CMF 1.2 on Zope 2.5.0, where i.e. two dtml-scripts from the example have to be replaced by python scripts ...) The example seems to work fine: I can create a new "CV", edit it, edit Metadata and so on, but it does not appear on the "View" of the portal... When I click "Folder contents" it does. I looked through "responsible" scripts (only 4, I believe) and tried to find the problem there, but couldn't. Any Ideas? thanks Bernd