Problems with mailer.php - Tutorial "Contact Form - The PHP Code"

Hello,

I’m a graphic designer and I was searching a quick and easy solution to a brief PHP form, when I found your tutorial “[FONT=Verdana][SIZE=4][COLOR=#003366]Contact Form - The PHP Code[/COLOR][/SIZE][/FONT]”. It’s perfect for what I’m looking for, but I need a little help to solve a problem.

In your form example, the variables are Name, Email and Message, right? Instead, mine would be 5 variables (text fields), like this:

Name
E-mail
Phone number
Date
Insurance Type

Besides, there are two checkboxes like this:
[] I’m already a Senzala Insurance Client
[] I’m already a Senzala Buildings Client

I don’t know how to include the phone number, date and insurance type on the php code, so I did like this:

<?php
if(isset($_POST[‘submit’])) {

$to = "my mail"; 
$subject = "Form Tutorial";
$name_field = $_POST['nome'];
$email_field = $_POST['email'];
$message = $_POST['telefone','data','tipo'];

foreach($_POST['check'] as $value) {
    $check_msg .= "Checked: $value

";
}

$body = "From: $name_field

E-Mail: $email_field
Message:
$message
$check_msg";

echo "Data has been submitted to $to!";
mail($to, $subject, $body);

} else {
echo “blarg!”;
}
?>

I’m sorry, but I really don’t know how to do this… is that right? Could anybody help me, urgently?
Thanks a lot!