Yep, when you click on the link to the galleries you are taken to a page with this:
**You need to login before you can access this portion of the site. Please enter a valid username and password at the prompt below. The password is case-sensitive.
**and the login boxes

If i search for a particular user's gallery, then it is displayed with the generic content advisory thumbs HOWEVER i am still able to click on those and actually access the full image itself it doesnt block me