Rails - Oct 2009 - friendly_id questions

Hi everyone. I''m starting a project, and I''m now using
friendly_id
plugin to fetch "estudios". I''ve got two questions:

1. It acts weird with accented i. If I have an estudio "ÁÉÍÓÚ", it
shows:
     http://localhost:3000/estudios/áé%C3%ADóú
   Why isn''t it working?

2. Is there a way to have custom slugs? Could an "estudio" edit
it''s
own slug,
   instead of being only generated from it''s name?

Thank you in advance;

Eugenio.