Server Side Highscore "There was an error getting the high score: 404 not found"

I'm following the tutorial found on the wiki on how to create server side high scores. found here Here is my current set up:

addscore.php

 <?php 
     $db = mysql_connect('localhost', 'root', 'wiiwowut') or die('Could not connect: ' . mysql_error()); 
     mysql_select_db('test') or die('Could not select database');

     // Strings must be escaped to prevent SQL injection attack. 
     $name = mysql_real_escape_string($_GET['name'], $db); 
     $score = mysql_real_escape_string($_GET['score'], $db); 
     $hash = $_GET['hash']; 
     
     $secretKey="99669900"; # Change this value to match the value stored in the client javascript below 

     $real_hash = md5($name . $score . $secretKey); 
     if($real_hash == $hash) { 
         // Send variables for the MySQL database class. 
         $query = "insert into scores values (NULL, '$name', '$score');"; 
         $result = mysql_query($query)  or die('Query failed: ' . mysql_error()); 
     } 

?>

displayscore.php

 <?php
 // Send variables for the MySQL database class.
 $database = mysql_connect('localhost', 'root', 'wiiwowut') or die('Could not connect: ' . mysql_error());
 mysql_select_db('test') or die('Could not select database');

 $query = "SELECT * FROM `scores` ORDER by `score` DESC LIMIT 5";
 $result = mysql_query($query) or die('Query failed: ' . mysql_error());

 $num_results = mysql_num_rows($result);  

 for($i = 0; $i < $num_results; $i++)
 {
      $row = mysql_fetch_array($result);
      echo $row['name'] . "\t" . $row['score'] . "\n";
 }

?>

hscontroller.js

     private var secretKey="99669900"; // Edit this value and make sure it's the same as the one stored on the server
 var addScoreUrl="http://localhost/addscore.php?"; //be sure to add a ? to your url
 var highscoreUrl="http://localhost/display.php";    
 
 function Start() {
     getScores();
 }
 
 function postScore(name, score) {
     //This connects to a server side php script that will add the name and score to a MySQL DB.
     // Supply it with a string representing the players name and the players score.
     var hash=Md5.Md5Sum(name + score + secretKey); 
 
     var highscore_url = addScoreUrl + "name=" + WWW.EscapeURL(name) + "&score=" + score + "&hash=" + hash;
         
     // Post the URL to the site and create a download object to get the result.
     hs_post = WWW(highscore_url);
     yield hs_post; // Wait until the download is done
     if(hs_post.error) {
         print("There was an error posting the high score: " + hs_post.error);
     }
 }
  
 // Get the scores from the MySQL DB to display in a GUIText.
 function getScores() {
     gameObject.guiText.text = "Loading Scores";
     hs_get = WWW(highscoreUrl);
     yield hs_get;
     
     if(hs_get.error) {
         print("There was an error getting the high score: " + hs_get.error);
     } else {
         gameObject.guiText.text = hs_get.text; // this is a GUIText that will display the scores in game.
     }
 }

What does 404 mean? is it an error with my database setup? MYSQL setup? did I not name something properly in the code?

I"m using Apache 2.2 webserver and PHP, both which seem to be working fine. Or could there really be an issue here?

EDIT: using a test PHP from the localhost

   <?php     $database = mysql_connect('localhost', 'root', 'wiiwowut') or die('Could not connect: ' . mysql_error());
     mysql_select_db('test') or die('Could not select database');
  echo (&quot;sucessfully connected, hooray!&quot;);
 ?&gt;

yielded sucessful. This has to be an issue within the unity code.