Illegal mix of collations

если не починился трекер, то там делов ровно на:

/bt/includes/tr_db.php


if($this->db_connect_id)
{
if($database != '')
{
$this->dbname = $database;

mysql_query('SET NAMES UTF8');

$dbselect = @mysql_select_db($this->dbname);
if(!$dbselect)
{
@mysql_close($this->db_connect_id);
$this->db_connect_id = $dbselect;
}
}
return $this->db_connect_id;
}

и все канает.