Ahí lo dejo:
Nombre: ACP Add User MOD.
Tiempo estimado de instalación: 3 minutos.
Descripción: Adds a new Module that enables an Administrator to create a new user account through the Administration Control Panel
Adds an extra permission to allow administrator to create a new user account.
Gives the administrator the ability to instantly approve a new member after creation.
Vista Previa: 
URL de descarga: http://www.phpbb.com/mods/db/download/2964/
Fuente:
http://www.phpbb.com/mods/db/index.p...ontrib_id=2964
Salu2.