problem fixed. it was strange blog behavoir. i was watching all the time frontend as logged user with locale set to bulgarian. so i can watch my translation. all default blog etc settings were set to bulgarian (using utf-8 charset).
when i logged out i got all utf-8 text as escaped chars.

solution: i changed in (blogroot)/conf/_locales.php $evo_charset to:

$evo_charset = ‘utf-8′;

and it worked. yes data in MySQL is in utf-8 and i want output in utf-8.

why it works and why was different behavoir. i dont know. but i ll check my 1.6 config file