UPDATE 9
So two things:
From some further discovery, Yahoo! Messenger apparently uses P2P for file transfer, which I find interesting.
Also, got typing notifs to work! 
Now I can rest in peace (and get conferencing out of the way). 
UPDATE 9
So two things:
From some further discovery, Yahoo! Messenger apparently uses P2P for file transfer, which I find interesting.
Also, got typing notifs to work!
Now I can rest in peace (and get conferencing out of the way).