Some help please..

Hey, I'm working on my new site, I've just finished coding the register script. It keeps returning the no username or no password provided errors but when i check the vars they all match up, I've also checked my clean function that's wrapped round the post vars and it's not that causing the error either. Can anyone have a look at this i've been reading it over for about half an hour trying to find it with no luck.

PHP Code:

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<?php

if(isset($_POST['register']))
{
    $user = clean($_POST['user']);
    $pass = clean($_POST['pass']);
    $cpass = clean($_POST['cpass']);
    $email = clean($_POST['email']);
    
    $errors = array();
    
    if(!$user)
    {
        $errors[] = "You did not specify a username";
    }
    
    if(!$pass)
    {
        $errors[] = "You did not specify a password.";
    }
    
    if(!$cpass)
    {
        $errors[] = "Please confirm your password.";
    }
    
    if(!$email)
    {
        $errors[] = "You did not specify an E-Mail address.";
    }
    
    if($user)
    {
        $get = mysql_query("SELECT * FROM `users` WHERE `username` = '" . $user . "'");
        if(mysql_num_rows($get) > 0)
        {
            $errors[] = "That username is already in use. Please choose another one.";
        }
    }
    
    if($pass)
    {
        if(strlen($pass) < 6)
        {
            $errors[] = "Your password is too short. Password must be atleast 6 characters.";
        }
    }
    
    if($pass && $cpass)
    {
        if($cpass != $pass)
        {
            $errors[] = "The 2 passwords you supplied do not match.";
        }
    }
    
    if($email)
    {
        if(!eregi("^[a-zA-Z0-9]+[a-zA-Z0-9_.-]*@[a-zA-Z0-9]+[a-zA-Z0-9_.-])*\.[a-z]{2,4}$", "$email"))
        {
            $errors[] = "Invalid E-Mail address.";
        }
    }
    
    if(count($errors) > 0)
    {
        echo("<div class=\"heading\">Error..</div><p>");
        foreach($errors as $error)
        {
            echo("&raquo; " . $error . "<br />");
        }
        echo("</p>");
    }
    else
    {
        $pass = md5($pass);
        mysql_query("INSERT INTO `users` (`username`, `password`, `email`) VALUES ('" . $user . "', '" . $pass . "', '" . $email . "')");
        echo("<div class=\"heading\">Success..</div>
        <p>Congratualtions, you're successfully registered, you may now login.</p>");
    }
}
else
{
    echo("<div class=\"heading\">Sign up</div>
    <p>By registering an account with us, you entitle yourself to a number of benefits not available to normal users. These include:</p>
    <p>&raquo; 10MB Upload maximum<br />
    &raquo; Your own folder to store your files<br />
    &raquo; 100MB Folder capacity<br />
    &raquo; Access to a user shoutbox<br /></p>
    <p>You can register an account by using the form below..<p>
    <p><form method=\"post\"><table width=\"350\">
    <tr><td width=\"150\">Username:</td><td width=\"200\"><input type=\"text\" name=\"user\" size=\"30\" /></td></tr>
    <tr><td>Password</td><td><input type=\"password\" name=\"pass\" size=\"30\" /></td></tr>
    <tr><td>Confirm</td><td><input type=\"password\" name=\"cpass\" size=\"30\" /></td></tr>
    <tr><td>E-Mail Address</td><td><input type=\"text\" name=\"email\" size=\"40\" /></td></tr>
    <tr><td colspan=\"2\" align=\"center\"><input type=\"submit\" name=\"register\" value=\"Sign Up\" /></td></tr>
    </table>");
}
?>

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Thanks in advance.

Sorry for double post, I couldn't edit my post. I've solved the problem now. Don't need help anymore :P