I've installed this plugin for a client's fanpage project and I'm observing some bizarre behavior that I feel is a problem with the plugin cookie handling.
It works PERFECTLY in IE8. In Firefox, Chrome, Safari, or Opera, if I unlike the page, logout, and close the browser the next time I open a browser and login to Facebook, the fanpage presents an unliked view.
I have prepared a 10-minute video to demonstrate what is not working, in my humble opinion. If someone has a solution for this, or if the developer is monitoring this forum, I could appreciate a response.