Nostalrius Begins - Quality wow vanilla realm (1.12)

i got the client downloaded and extracted and all those other steps. i have wow open at the log in screen and i put in my account info i created on the main page. when i do it tried authenicating but it give me a message saying

the information you have entered is not valid. please check.... and some other stuff.

bump

Did you change the realmlist to login.nostalrius.org? Or login2.nostalrius.org works too I believe.