Set Photo For Domain Users

Unfortunately, it does not look like there is a built-in way for Windows Vista/7 clients to utilize the jpegPhoto or thumbnailPhoto attributes in Active Directory.

However, another option may be to write a logon script that extracts the binary data from AD and store it in %programdata%\Microsoft\User Account Picutres\user.bmp. Then turn on the Group Policy setting Apply the default user logon picture to all users which is under Control Panel\User Accounts.

For the logon script, search for those two attribute names and you will see some sample programs for uploading/downloading the images.