Hm, cant figured out how can i have a full image (and thumbnails) to the files. When i press edit or i add a new link, there is no any field to add one
Also, when someone who hasnt permission to see the files, goes there, maybe would be better to show a download link and when he press it, he have a page that saying that he is not registered therefore cant see the files
Thats all for now, great hack it seems till now