the @hotmail address seems to have been registered on March 16th, 2003.
I doubt tyuiop3@hotmail.com is his e-mail at all, but I'm still controlling it for now, just incase.
info:

THINGS I KNOW SO FAR:
tyuiop3@live.com (his actual e-mail address) has an alternate e-mail account -- if we can get this there's a chance he'll have a weak password on it
someone sent an e-mail from the @hotmail (unconfirmed to be his) to itself claiming he (Poiuyt) is going to hack MackTheHunter
I control tyuiop3@hotmail.com (unconfirmed to be his) at this time, but I did not send the e-mail to itself (if you go back a few pages you'll see I posted the password to it, it could have been anyone that sent it)