to change the names of the form elements, you will also need to either delete or change the corresponding server validation.
For example, to change the contact name:
<input name="Contact_Name" type="text" class="inputValue" id="Contact_Name" onblur="if (document.getElementById('nameServerError')) document.getElementById('nameServerError').style.display='none'" value="<?php echo(ValidatedField("contact","Contact_Name")) ?>" />
to:
<input name="Nombres_y_Apellidos" type="text" class="inputValue" id="Contact_Name" onblur="if (document.getElementById('nameServerError')) document.getElementById('nameServerError').style.display='none'" value="<?php echo(ValidatedField("contact","Contact_Name")) ?>" />
you will also need to change:
$WAFV_Errors .= WAValidateRQ(((isset($_POST["Contact_Name"]))?$_POST["Contact_Name"]:"") . "",true,1);
to:
$WAFV_Errors .= WAValidateRQ(((isset($_POST["Nombres_y_Apellidos"]))?$_POST["Nombres_y_Apellidos"]:"") . "",true,1);
if you change the email address form element, you will also need to edit the WA_Universal_Email/WAUE_contact_1.php file.
If you are changing the name to "Email", you will need to change:
$MailFrom = "".((isset($_POST["Email_address"]))?$_POST["Email_address"]:"") ."";
to:
$MailFrom = "".((isset($_POST["Email"]))?$_POST["Email"]:"") ."";
the issue with the select lists is that they do not have a name attribute:
<select size="1">
should be:
<select name="mySelectList" size="1">