I'm playing with the demo and I noted that when I attach a picture, I am given the option of displaying it as a thumbnail or displaying in full view. I like this option very much, and it make it easy to post photos within the body of the posts. (This option is not user-friendly on some other softwares I have tried.) I noticed, however, that when I logged out as a user and tried to view the photos I had just posted as full view, the photos showed up as thumb nails. Is there a way to change that preset so that non-user browsers and/or logged out users can see the photos as they appear when a user is logged in?
This is a designed behavior and behaves according to permissions. Its entirely possible to get full attachments to show to guests. After you have a license, you can post in the support forums for detailed information.