XBMC Eden + Pana TH-P50ST50A + CEC +Zotac ND22

Hi Team,
can someone please explain this to me:
1. If the TV support CEC and
2. HDMI video + audio are working and
3. I assume XBMC Eden can "speak' CEC

Why I can't control my xbmc device from VieraLink ?

The threads I have found in relation to CEC all talk about using Plust-Eight.
My understaning is that his is needed if your TV does not 'speak' CEC ?


Am I missing something ?


cheers,
dg