As a admin you can change the contents of the fields in the user profile. But I can't find a place to change the profile picture of a user, when being administrator. I sure I overlooking something..
It can be done if you are familiar with phpmyadmin. I need to do this for an employee website.
1) Open phpMyAdmin and brouse the #_comprofiler table. You will see a list of all your users with a number assigned to each. Example: Steve is id 62.
2) Take your picture of Steve and resize to 200x267 (don't know if nessasary) and rename it 62.jpg. Then resize it again to 60x80 and save as tn62.jpg.
3) FTP both images to ../images/comprofiler.
4) Go back to your phpMyAdmin and edit Steve. Go to the row that says "Avatar". Uncheck "Null". Type in 62.jpg in Avatar Value. Go to the bottom and click "Go".
5) You're done!
It would be nice to have the admin be able to do this in the backend. I got this information a long time ago off the old CB site.
Heres a thread talking about resizing. On the second page Peter Mixt mentions something about doing a large batch in Photo shop. Might help with the 200 member photos.