User picture - does it map to AD ?

I have been looking at the user picture facility in Vista. I have been able
to set a picture for myself that appears at logon screen and when I lock the
computer.

My question is, can this image (or a link to it) be stored in active
directory so that if a user logs on at another workstation, they will see
their picture and not the default user picture.

I have been unable to find a place in ADUC where I can specify an image url.

Please advise!