Okay, I tested my question above and found that the ads were being displayed to my contributors. I needed a fix so I edited the product template 'postbit_display_complete'.
I found:
Code:
$usergorx = is_member_of($vbulletin->userinfo,split(',', $vbulletin->options['gapiuser']));
}
and changed it to:
Code:
$usergorx = !is_member_of($vbulletin->userinfo,split(',', $vbulletin->options['gapiuser']));
}
And then went to
vBulletin Options > Google Adsense Postbit Integration > Usergroups ID can use Google Adsense and put the usergroup ID I did NOT want to see the ads.
To complete this hack a person could also edit the phrases to state that the listed usergroups would not see the ads.
hth someone.