We consider integration complete by now, but of course, we are open to your comments and wishes.
Just keep in mind that it's alpha version of our Plugin so you should tune Magento Connect Manager preferred state to accept Alpha extensions. See image below.
|Fig.1 - Magento Connect Manager|
After installation you should see new menu item in your admin panel.
|Fig.2 - Magento Admin Panel|
If you are new to work with P3chat you can examine our widget main features and ask questions online.