Hello,
Not quite sure I understand what you mean by "Categorization is missing"?
Basically, an entry object would have:
categories fish
categoriesIds 12
i.e, a class member called 'categories' with a CSV of the category names and 'categoriesIds' with their IDs.
Are you sure the entries you are looking at are attached to a category? do you see them as attached to a category in KMC?
Also, as far as restrictions go, you can always create a session, passing disableentitlement as the privileges param, that is the last param when calling session.start()