registetion and activateion helpppp plz

hey guys i got this script from a friend but his script has something i dont like in when your in the register form you fill out eveything after that its tells me to check my emaill for activation but then in the activation page it tells me to put a code in so i  can activate my account i dont want that i just want user to get an email an when the click on it they will be able to login instead of putting a code in here are the register and the activtion code plz help me

register

<?php $title = "Register"; ?>
<?php require("styles/top.php"); ?>
<div id='full'>
<?php

$form = "<form action='register.php' method='post' enctype='multipart/form-data'>
<table cellspacing='10px'>
<tr>
	<td></td>
	<td><font color='red'>*</font> are required</td>
</tr>
<tr>
	<td>First Name:</td>
	<td><input type='text' name='firstname' class='textbox' size='35'><font color='red'>*</font></td>
</tr>
<tr>
	<td>Last Name:</td>
	<td><input type='text' name='lastname' class='textbox' size='35'><font color='red'>*</font></td>
</tr>
<tr>
	<td>Username:</td>
	<td><input type='text' name='username' class='textbox' size='35'><font color='red'>*</font></td>
</tr>
<tr>
	<td>Email:</td>
	<td><input type='text' name='email' class='textbox' size='35'><font color='red'>*</font></td>
</tr>
<tr>
	<td>Password:</td>
	<td><input type='password' name='password' class='textbox' size='35'><font color='red'>*</font></td>
</tr>
<tr>
	<td>Confirm Password:</td>
	<td><input type='password' name='repassword' class='textbox' size='35'><font color='red'>*</font></td>
</tr>
<tr>
	<td>Avatar:</td>
	<td><input type='file' name='avatar'></td>
</tr>
<tr>
	<td>Youtube Username:</td>
	<td><input type='text' name='youtube' class='textbox' size='35'></td>
</tr>
<tr>
	<td>Bio/About:</td>
	<td><textarea name='bio' cols='35' rows='5' class='textbox'></textarea></td>
</tr>
<tr>
	<td></td>
	<td><input type='submit' name='submitbtn' value='Register' class='button'></td>
</tr>
</table>
</form>";

if ($_POST['submitbtn']){

	$firstname = strip_tags($_POST['firstname']);
	$lastname = strip_tags($_POST['lastname']);
	$username = strip_tags($_POST['username']);
	$email = strip_tags($_POST['email']);
	$password = strip_tags($_POST['password']);
	$repassword = strip_tags($_POST['repassword']);
	$youtube = strip_tags($_POST['youtube']);
	$bio = strip_tags($_POST['bio']);

	$name = $_FILES['avatar']['name'];
	$type = $_FILES['avatar']['type'];
	$size = $_FILES['avatar']['size'];
	$tmpname = $_FILES['avatar']['tmp_name'];
	$ext = substr($name, strrpos($name, '.'));

	if ($firstname && $lastname && $username && $email && $password && $repassword){
		if ($password == $repassword){
			if (strstr($email, "@") && strstr($email, ".") && (strlen($email) >= 6)){

				require("scripts/connect.php");

				$query = mysql_query("SELECT * FROM users WHERE username='$username'");
				$numrows = mysql_num_rows($query);
				if ($numrows == 0){

					$query = mysql_query("SELECT * FROM users WHERE email='$email'");
					$numrows = mysql_num_rows($query);
					if ($numrows == 0){

						$pass = md5(md5($password));
						$date = date("F d, Y");

						if ($name){
							move_uploaded_file($tmpname, "avatars/$username.$ext");
							$avatar = $username.$ext;
						}
						else
							$avatar = "defavatar.png";

						$code = substr(md5(rand(1111111111, 99999999999999)), 2, 25);

						mysql_query("INSERT INTO users VALUES ('', '$firstname', '$lastname', '$username', '$email', '$pass', '$avatar', '$bio', '$youtube', '', '0', '$code', '0', '$date')");

						$webmaster = "Admin@******.com";
						$subject = "Activate Your Account";
						$headers = "From: ******<$webmaster>";
						$message = "Hello $firstname. Welcome to *******.com Below is a link for you to activate your account on ******.com\n\n Clicke Here to Activate Your Account: http://www.*******.com/activate.php?code=$code";

						mail($email, $subject, $message, $headers);

						echo "Thank You for registering. You must now activate your account throught the activation email that has been sent to <b>$email</b>. You must activate your account to be able to login. If you are haveing problems please contact the site administrator at <a href='mailto:admin@*******.com'>Admin@*******.com</a>.";

					}
					else
						echo "That email is already taken. $form";
				}
				else
					echo "That username is already taken. $form";
			}
			else
				echo "You did not enter a valid email. $form";
		}
		else
			echo "Your passwords did not match. $form";
	}
	else
		echo "You did not fill in all the required fields. $form";
}
else
	echo "$form";

?>
</div>
<?php require("styles/bottom.php"); ?>

activation

<?php $title = "Activate Your Account"; ?>
<?php require("styles/top.php"); ?>
<div id='full'>
<?php

$getcode = $_GET['code'];

$form = "<form action='activate.php' method='post'>
<table>
<tr>
	<td>Activate Code:</td>
	<td><input type='text' name='code' value='$getcode' size='35'></td>
</tr>
<tr>
	<td>Username:</td>
	<td><input type='text' name='username' size='35'></td>
</tr>
<tr>
	<td>Password:</td>
	<td><input type='password' name='password' size='35'></td>
</tr>
<tr>
	<td></td>
	<td><input type='submit' name='submitbtn' vlaue='Activate'></td>
</tr>
</table>
</form>";

if ($_POST['submitbtn']){
	$code = strip_tags($_POST['code']);
	$username = strip_tags($_POST['username']);
	$password = strip_tags($_POST['password']);

	if ($code && $username && $password){
		if (strlen($code) == 25){
			$pass = md5(md5($password));
			require("scripts/connect.php");
			$query = mysql_query("SELECT * FROM users WHERE username='$username' AND password='$pass'");
			$numrows = mysql_num_rows($query);
			if ($numrows == 1){

				$row = mysql_fetch_assoc($query);
				$dbcode = $row['code'];

				if ($code == $dbcode){

					mysql_query("UPDATE users SET active='1' WHERE username='$username'");

					echo "You account has been activated. You may now login. <a href='login.php'>Click here to login.</a>";

				}
				else
					echo "You activation code incorrect. $form";
			}
			else
				echo "Your username and password are invalid. $form";
		}
		else
			echo "You have not supplied a valid code. $form";
	}
	else
		echo "You did not fill in the entire form. $form";
}
else
	echo "$form";
?>

</div>
<?php require("styles/bottom.php"); ?>

helppppp

plz can anyone help me

:'( :'( :'( plz help

$message = "Hello $firstname. Welcome to *******.com Below is a link for you to activate your account on ******.com\n\n 
<a href='http://www.sitename.com/login.php'>Clicke Here to Activate Your Account: http://www.*******.com/activate.php?code=$code</a>";

purpose of email activation - validate the email address

I don't understand you say again