user.save

So if I create a new user via xmlrpc and the services module I can populate profile fields no problem using user.save, but for some reason I cannot update profile fields using user.save I'm actually connecting to xmlrpc from java.

I've done it in php as well.

$user_object = array(
'name' => 'test_user_from_api',
'profile_name' => 'James',
'profile_last_name' => 'Test',
'pass' => 'testuser',
'mail' => 'james@yahoo.com',
'status' => 1
);