Centro de Promocin de la Mujer Gregoria Apaza (CPMGA), Red Habitat Taller de Proyectos e Investigacin del Habitat Urbano y Rural (REDHABITAT), Bolivia: civic empowerment of social organizations and actors in El Alto; salaries, communication, advocacy and training for the greater participation of impoverished urban sectors in decision-making in El Alto, 2000-2003