To have an email sent to a pre determined email address when a user clicks on "Ask your Question" button, add a line after line 57 in client.php:
mail("$to","$subject","$message","From: $from\r\n");
$to -> recipient's email address (rfc822 address)
$subject -> email subject
$message -> email message
$from -> sender's email address (rfc822 address)
This is assuming that php.ini/email server has been setup correctly!!
This functionality allows me to monitor the inbound requests easily and not have the need to have the agent page constantly visible