Group and category is published and set access to enabled for all registered members. Latest versions for all.
I solved my problem by creating a link to "overview" on my registered users menu. /pluginclass.html?plugin=cbgroupjive&action=overview
This now allows them to create new categories and groups. Also they can see all the existing groups available to join.
This is exactly what I wanted.
I don't know why this isn't a standard option.