Using vb database for login on separate domain

[ravenswood1000]

Hi. I've been looking around but can't seem to find an easy answer. All I want to do is be able to is authenticate a user and password against the vbulletin user (4.1.4) database on a domain that is separate from the forums (hence not shared cookies) and go from there.

Don't need anything fancy. I just want to be able to have them authenticate that they are a forum user on the forum domain.

I'm sorry if I missed an article, but could someone point something like this out or demonstrate how it might be done?

Thanks in advance.

--------------- Added [DATE]1310747479[/DATE] at [TIME]1310747479[/TIME] ---------------

I found this, but it does not work.

<form action="index.php?p=login" method="post" enctype="multipart/form-data">

Username: <input type="text" name="user" />       
 Password: <input type="password" name="pass" />        
 <input type="submit" value="Login" />    
 </form>
 <?php    
 if ( $_GET['p'] == 'login' ) {      
     $host = "localhost";  
     $user = "username";  
     $pass = "password";  
     $$db = "forums";  
     $con = mysql_connect($server, $username, $password);  
     mysql_select_db($database);          
     // MD5 the form password        
     $md5Pass = MD5(MD5(pass.salt));                 
     // Get user details from MySQL Table  
     print "$md5Pass<br>";     
     $Query = mysql_query( " SELECT * FROM user WHERE username = '$_POST[user]' " );        
     $result = mysql_fetch_array( $Query );                
     // Check that the form password matches the one in the database        
     if ( $md5Pass == $result['password'] ) {            
         echo 'User logged in';        
     } else {
          echo 'Wrong Password, please try again';       
     }            
 }
?>

Can anyone be of assistance?