How to configure the "PVR Service"

Hi

ive installed 3 versions of XBMC, i cant find how to configure the PVR service in any of them...

v11 (http://mirrors.xbmc.org/releases/win32/xbmc-11.0.exe)
doesnt have a PVR Service

nightly (http://mirrors.xbmc.org/nightlies/win32/...aster.exe)
has a service but its grayed out so gave up.

this version (http://packages.pulse-eight.net/windows/...11.12.exe)
has a PVR service however after 2 hours i cant find anyway to configure it...

Driving me nuts, i hear NPVR plugin is in the system so how do i configure it?

Many Thanks