2
login as admin
go to adminitration, Users, find users, submit to list all.
then click on their display name.
you might want to make sure you are at 2.2.3a I know I could not edit the users properily in 2.2.3. Also on that find users page it will display only their display name twice not there username like it should.
the fix is under XOOPS downloads by
clicking hereOR
you can go to Administration, Modules, Extended Profiles, Users and find the users that way.
Arowana