Varnish not installed!!

Hi you all.

I have CWP-pro version: 0.9.8.1021

I'm using Nginx & Varnish & Apache, when I click on ([Varnish Conf]) I get "Varnish not installed"

And in my menu I don't have varnish conffiguration options.

IS there a reason why that is.

If I add this to the url module=varnish_conf I get this.

Varnish High Performance
Varnish is for more advanced users with high traffic servers!
For best performance use Varnish with RAM!
***Varnish not installed.

Could some one be so kind to assist me or should I talk to support about this.

Best reards