I have recently started using record matches with my "complete" subscription, and I managed to get a lot of matches with familysearch matches... for several I got matches with photos, which I didn't have in my family tree, but I was unable to add them... how to do that? Not manually I hope?
Several site managers prevents the copy of family photos from their sites for several reasons.
What You can do, is to contact the specific site manager and ask him for specific photos or much better, ask for membership on his/her sites. If there is a family connection, this should not be a problem.