Avatar As Link

[xug]

I'm looking for a hack to make it possible to enter a link for the avatar to have the avatar on a remote location and to read a .php script, in my case I want to have an avatar rotator to work with this option.
I have the rotator and had this all working in vB2 but would like to be able to do this in vB3, also so that only admins can enter the link in the admin panel for any user, this way we can check the link first if a member wants this option and we place it for him in his profile (security reasons).

Please help, thank you.