A photo was posted on a profile page without the knowledge of the classmate(family member-site is used as a family website) or admin (me). We do not know this person (man) and have know idea how this picture was posted. Help!

Welcome BettyAnn.

There are 2 ways this could have happened:

1) Somebody obtained or guessed the family member's password, logged in, and posted the photo.

2) If the family member hadn't actually joined your site, then anyone could have easily joined using the family member's name, and then posted the photo.

If the later is the case, I recommend you click on your Preferences link and then activate the New Classmate Access Rights feature by clicking the "DO NOT ALLOW" radio button. This will stop new member from doing much of anything until you've had a chance to confirm their identity.