Ok, i found the answer here http://www.silverstripe.org/general-questions/show/258497#post258497, but i cases only new pages, the old ones, now all have the wrong letters, and have to rebuild.

At least tag cloud didn't work correctly, and a whole blog too, i thing that every module need to be extended that way, mayby there is more elegant solution?

Hi Solo

sorry I forgot to add the class

class MySQLUnicodeDatabase extends MySQLDatabase {
	
	public function __construct($parameters) {
		parent::__construct($parameters);
		mysql_set_charset('utf8'); // We can't get access to dbConn, but we don't have to, since it's going to be the most recent one created.
	}
}

Thanks for your help, but i didn't understand how to use it, it didn't work if sets only in _conf. Another one solution is here http://open.silverstripe.org/ticket/2377, but it didn't have effect on extensions, like blog. What a fk(((