@mliedtke:
for as for as I got uptill now..thus partially ansering your questions=>
1. no (there do exist different versions of the portlet, search the wiki for the alfresco recipe)
2. I'm on 4.3.4, portlet in there is 2.1 but you can build and deploy 2.9b portlet using instructions found in alfresco wiki
3. SSO is arranged directly within the portal, so not by means of cas f.e., this is the part where some problems arise when going beyond 4.3.2 and 2.1 (see forum and wiki: portlets don't show content because either service or authentication not working properly) I'm stuck at this point despite some help from users in this forum.
4. yes, they are applied to your running alfresco instance
5. yes
maybe this (partially) helps :wink: and others will add..