* Check it works with distributions different than RH 6.2.
  - it works with Debian.

* /etc/shadow
  - backend: modify this information in the system. Find the right command
    for this.
	- change the passwd_last_modified field with a new date.

* search for available shells, and set a combo box for the
  user_settings_dialog, instead of a simple entry for the shell in adv mode.

* Code organization.

* Internationalization.

* Backend: NIS stuff.