Hello,I have a customer that is asking me to create a content where:1. registered users can add the content2. unregistered users have a button to add the content and will be  redirected on the registration/login page (just like here to add a discussion on community.getk2.org)3. every post should be  moderated, so the administrator can approve only the posts that are ok.4. post can be commented by registered users.I am trying to do that using k2 and joomla, well.. I must admit I found k2 because i searched cck for joomla :-)At this time I am substantially searching how to achieve the point 2, wich at a first look seems simple but i cant find how tho implement.Maybe I am missing something?Thank you!