the form element names used by the original contact form solution pack are:
Contact_Name
Email_address
Comments
you are using:
contactName
contactEmail
contactComments
Instead of using two separate recipient line:
$RecipientEmail = "".(isset($_POST['sendTo'])?$_POST['sendTo']:"") ."";include("WA_Universal_Email/WAUE_contact_1.php");
$RecipientEmail = "mailadmin@brosco-bartley.com";include("WA_Universal_Email/WAUE_contact_1.php");
you can combine them into one:
$RecipientEmail = "".(isset($_POST['sendTo'])?$_POST['sendTo']:"") .",mailadmin@brosco-bartley.com";include("WA_Universal_Email/WAUE_contact_1.php");
that message looks correct according to the WA_UniversalEmail/templates/contactus.php file that is being used to generate the email body.