CyVan i had to ran a few testes using the DNS of my ISP which i notice that some websites kept timing out, so i search around for a few DNS from bigger ISP's in other countries and when i tried them my messenger worked and i was able to check my yahoo mail with (
www.mail.yahoo.com and
http://yahoo.com/m1/r.......
Anyways i saw a post today with some guy saying he got flow and he was having problems accessing his mails on his school site so he changed his DNS as well and now he is good to go. So that should confirms what i am saying.