Intra aici si da click pe DOWNLOAD NOW in dreapta http://messenger.yahoo.com/download/
SAU direct download aici:
http://rd.software.yahoo.com/msgr/11/msgr11us.exe
CUM SE INSTALEAZA YAHOO MESSENGER - FULL INSTALL -> http://vsh.ro/tutorial/280/yahoo-messenger--instalare-si-configurare-cont/
Succes!