geotarget by country, is this a working script ? (free downloadable scripts)

www.ip2nation.com (all the scripts are free to download)
has a sample country based redirection on their site, is this a working script for geotargeting by country that I can use? Or is it only a partial script? Do I need a MySQL database, or can I simply insert this into my html file?

I'm looking for help on how to fill out this script and instructions on where to insert it into my html code, of how to find a MySQL database. If anyone could, please let me know, I can post a job listing under DP services buy/sell.

<?php

$server = ''; // MySQL hostname
$username = ''; // MySQL username
$password = ''; // MySQL password
$dbname = ''; // MySQL db name


$db = mysql_connect($server, $username, $password) or die(mysql_error());
mysql_select_db($dbname) or die(mysql_error());

$sql = 'SELECT
country
FROM
ip2nation
WHERE
ip < INET_ATON("'.$_SERVER['REMOTE_ADDR'].'")
ORDER BY
ip DESC
LIMIT 0,1';

list($country) = mysql_fetch_row(mysql_query($sql));

switch ($country) {
case 'se':
// Get the swedish to a swedish newssite
header('Location: http://www.thelocal.se/');
exit;
case 'us':
// And let the folks from american go to CNN
header('Location: http://www.cnn.com/');
exit;
default:
// The rest can go to BBC
header('Location: http://www.bbc.co.uk/');
exit;
}

?>