I’m no longer producing Nvidia ION optimized versions. If you want to continue the latest improvements you should consider the generic xbmclive freak. The generic version contains a script that will automatically detect Nvidia ION chips. If one found a bunch of additional scripts will be loaded to give you the flavor needed.
It is great to guide us how to install the latest GPU driver for AMD and NVIDIA
@Linhnguyen
for nvidia see: http://www.xbmcfreak.nl/xbmc-nvidia-ion/nvidia-1851814-installeren-op-xbmc-904/