Correct something on your site is not set accordingly this is what you are beating up against in the code.
Code:
Content visible to verified customers only.
As both pitbasher and myself have stated this does work if permissions are set. You can vote on my site link I posted to show this does work if permissions are there
Either category or global permissions are not set. I would be glad to look at how you have it set if you send an admin login and url to our contact box in the header