Bueno, chicos tema solucionado. Si sabeis ingles y os preguntais lo mismo que yo, ahi va la solucion desde este foro,
http://wordpress.org/
If you want to edit your theme files, you copy whatever file (except functions.php) you want to change/alter/insert code into from your parent theme (Twenty Eleven) into your child theme folder. Then you can edit that version.
http://codex.wordpress.org/Child_Themes#Template_files