Why WinCC Flexible 2008 doesn't support TP-178..?

TP178, 5,7", STN. With 6 keys.
P.N: 6AV6640-0DA11-0AX0.
I have install the HF-3, but still the HMI is not shows up when selecting device in WinCC Flexible 2008...?
Is there anything that I miss?

Thank you.