you don't need to incorporate those, you just send the form to postnew.asp like:
<form method="post" action="postnew.asp">
then on postnew.asp you can have a script that emails the form to you, there's some tutorial on how to send emails from and asp script on this site, you might want to read them....
<edit> Another trick if you don't have an email component or want to use the mailto: command for some reason try including this javascript on your postnew.asp:
<script>
function submitform() {
document.myform.submit();
}
</script>
<body onLoad="submitform()">
<form name="myform" action="mailto: youremail">
..
.. All your hidden vars
..
</form>
<!-- your page html here -->
</body>
right after your asp code, that will autosubmit a hidden form to your email from the postnew.asp
Edited by fernan82