It seems that I have a serious flaw in cross site tracking.
I am working on a updated version that will correct this flaw.
Basically I will be removing the cross site domain setting from the cross site tracking section and adding a set domain value to the basic settings section. This was a flaw in my understanding of cross site tracking. Since it's not working I'm hoping that no one abandoned use of this plugin and no one used it for cross site tracking which is why I did not get any support requests.
New version should be out soon, working on it now.