PNG Counter

Hi, I have problems to configure png counter. I have a blank page when opening config.inc.php. Database is OK, but do I have to change this:

$CFG['db'] = false; /* if false ignore 4 following fields */
$CFG['dbhost'] = "10.10.10.10:3306"; /* host:port */
$CFG['dbuser'] = "username";
$CFG['dbpasswd'] = "password";
$CFG['dbname'] = "database";

and this

$CFG['referer_check'] = false;
$VALID = array(
"http://localhost",
"http://www.fmartinro.f2s.com"

with my own datas ?...
Thanks in advance
George