Cant loggin wotlk

i just made an account on site and downloaded the files. Tryid to loggin but nothing happends. I tried to look for the realmlist.wtf but there was none. so i added one file and put "Set realmlist logon.warmane.com". Tried to logg again but samething nothing happens.. is Wrath of Lich King 3.5.5a right download? and why doesnt i get any connection with the server?

If you downloaded our client, the realmlist will be already set to our server.
Otherwise, make sure you created it in the right folder. For WOTLK it is: \Data\enUS(or your main language)\realmlist.wtf
set realmlist logon.warmane.com