Cambio de servidor y script no funciona

[nonicas]

Os pego tambien el php por si alguien le puede echar un vistazo, a mi hasta ahora me ha funcionado genial.

Muchas gracias

<?php

global $REMOTE_ADDR, $display;

###############
## VARIABLES ##
###############

// CONFIGURABLE
$data_refresh = 180; // how long before an entry will be deleted in seconds

// DATABASE CONFIGURATION
$db_host = "localhost";
$db_user = "xxxx";
$db_pass = "xxxxx";
$db_name = "xxxxx";
$db_table = "xxxxxx";

// DO NOT EDIT UNLESS YOU KNOW WHAT YOUR DOING
$timestamp = time(); // timestamp variable
$user_ip = $REMOTE_ADDR; // IP address variable

// QUERIES
$online_query = "SELECT * FROM {$db_table}";
$exists_query = "SELECT ip FROM {$db_table} WHERE ip='{$user_ip}'";
$update_query = "UPDATE {$db_table} SET timestamp='{$timestamp}' WHERE ip='{$user_ip}'";
$insert_query = "INSERT INTO {$db_table} (ip, timestamp) VALUES ('{$user_ip}', '{$timestamp}')";

// the delete query is not in this list because it requires the $data array in the delete case


##################
## BEGIN SCRIPT ##
##################

// CONNECT TO DATABASE
$mysql_link = mysql_connect($db_host, $db_user, $db_pass);
mysql_select_db($db_name);


// ADD/EDIT ENTRY
if (mysql_num_rows(mysql_query($exists_query)) == 0) {
mysql_query($insert_query);
} else {
mysql_query($update_query);
}

// DELETE OLD ENTRIES
$online = mysql_query($online_query);
while($data=mysql_fetch_assoc($online)) {
$difference = $timestamp - $data[timestamp];
if ($difference > $data_refresh) {
// DELETE QUERY
$delete_query = "DELETE FROM {$db_table} WHERE timestamp='$data[timestamp]'";
mysql_query($delete_query);
$users_online = $users_online - 1;
}
}

$users_online = mysql_num_rows(mysql_query($online_query));

################
## END SCRIPT ##
################

################
## PRINT DATA ##
################

if ($display == "javascript") {
print "document.write('";
}

if ($users_online > 1) {
print "$users_online ";
} elseif ($users_online == "1") {
print "$users_online ";
} elseif ($users_online == "0") {
print "There are no users online.";
}

if ($display == "javascript") {
print "');";
}

?>