Flash / Php message text trouble in mail form

I have used the flash php email from tutorial and its working a treat. I have modified the php to send the emails etc. to my address and the emails are getting through. However the message text is not coming through. I only get blank emails. I’m only starting to learn php so has someone got an answer for this? Thanks in advance

Here’s the php script:

$sendTo = “[email protected]”;
$subject = “Email from akphotos”;
$headers = “From: " . $_POST[“firstName”] .” “. $_POST[“lastname”] . “<” . $_POST[“email”] .”>
$headers .= "Reply-To: " . $_POST[“email”] . "
$headers .= "Return-path: " . $_POST[“email”];
$body = $_POST[“message”];
mail($sendTo, $subject, $message, $headers);