Sorry it took so long to get back to this.
Thanks. You have to add it as a System Profile.
Apple changed the interface for the 802.1x in 10.5.4 and never updated their documentation, I am told by one of the Mac Geniuses that updated documentation is immenent...
We wound up using the Login Window Profile and it accomplises what we wanted... but each user autheticates to Wireless using their own credentials.