Well:
I want to set up a members area where the icons and the thumbs are not in a protected area.
The full sized images and video are in a protected area BUT they are on html, so, all I get is a broken image. (If they were not on html they would just redirect to the 403, but I need them on html due to some of the features).
What I want to do is replace the standard broken image

with an image that tells them why they are not seeing what they expected and what they need to do (log in or join).
.