Thanks for your help LordShryku, it is greatly appreciated. I have taken a look at the link you gave me and I am getting much closer. Here is what I have so far:
<?
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-type: text/html; charset=iso-8859-1\r\n";
$message="<b>Name:</b> $realname\n".
"Address: $address_line_1\n".
"Post Code: $postcode\n".
"Telephone: $telephone\n".
"Email: $email\n".
"Password: The password people is helloWorld";
mail("macromedia@factoryzen.com","$subject","$message","From:$email\r\nReply-to:$email");
echo "<p><br><br>Thank you for your submission.</p>";
echo "</p><a href='publications.html'>Back</a>";
?>
Can you see where I am going wrong ?
Thanks,
Stephen.