Flash php Form question

ok i was following alogn the tutorial.
but i want to add more fields.
so i made my fields.
gave them a variable. and i named the field. not sure it thats what i needed to do.
but how would i modify the php script?

<b>$headers .= "Return-path: " . $POST[“email”];
$body = $
.POST[“old”];</b>

is this right?