I haven't tested this, but hopefully this will work, or at least lead you in the right direction. It will change all email to be from your company name, but the reply address will stay as orders, newsletter etc. Just replace YOUR COMPANY NAME below.
In func.php find
Code:
function func_send_mail
If you are using HTML there is a line that sets the email addresses. Try this:
Replace:
Code:
$headers = "From: ".$m_from.$lend."X-Mailer: PHP/".phpversion().$lend."MIME-Version: 1.0".$lend.$message_header;
Code:
$headers = "From: YOUR COMPANY NAME HERE<".$m_from.">\r\n" .
'X-Mailer: PHP/' . phpversion() . "\r\n" .
"MIME-Version: 1.0\r\n"