the server file name variable will not show on the profile page, it will be available on the page that you added the upload behavior.
can you send me a copy of the page you added the upload behavior, a copy of the login page and a copy of the page where you are trying to show the picture.
are you sure the file is uploading correctly?
Are you sure the file name is being stored in the database?
All of these ducks need to be lined up before you can display the picture on another page.