Problem reading ADC Channel on T20

I am trying to read ADC data using demo:
[Demo example][1]
I am stuck at line :

 if (!Ac97Init())

which doesn’t succeed.
Output of this demo program is:

ADCLibVersion : 2.1.2
Processor Type:Tegra 2 detected
ADC Resolution is: 12-bits
Could not initialize codec

I also executed AC97Tweak V1.2 tool which runs fine and in Header says that it is using codec: WM9715

What am I doing wrong?

Edit broken link:
Demo example

I tried ADCLibDemo_Lib example in Toradex Windows CE Library Package V2.0bis.2868 and here it works FINE. It seems i used wrong librarys.