Well, first of all, i have to say i love Messenger Plus, but it's not working as it should on Windows 8 Beta, the problem (that i dont find so annoying) is started already when you try to install Messenger Plus, some letters are missing, for example it types "Nex" instead of "Next" or "Clos" instead of "Close".
The other thing i find very annoying is that when you click "X" (close) on main messenger window, MSN will close itself (or kinda minimize), but theres no way to bring it up again (in the taskbar it doesnt show it), but if you look at Task Manager, you can see its still runing in Background Services, so you have to close it there and run Messenger again, if you dont close it, everything will be shown twice when you talk with someone.
Maybe there are some other bugs, but i would be happy if this would be fixed, so i can start to use Messenger Plus again
PS: I'm using latest Windows Live Messenger (version 15.4.3555.308).
Greetings
