Thanks for the input, worked nicely, the create_user page has been modified and does exactly what I want for all AD Users.
I have now moved on a stage and again have become stuck.
When a user is created the Role is set to [Geust] and can not be changed. I have a second group of users that can create users but they must only be allow to create a user with the Role of [Contractor].
Niether group of users should be able to see or change the Role.
Best Regards,
Nigel