Nostalrius Begins - Quality wow vanilla realm (1.12)

Everything seems to have gone along fine except when I get in game and enter my login credentials, it says I have entered incorrect information. I have checked, double checked, and triple checked that it is entered correctly and I am quite certain that I am using the correct info. I have not found any FAQ covering this issue and I have not received any emails from Nostalrius in either my inbox or spam folder. The realmlist appears to be set correctly. I don't understand what I could be doing wrong.

I found the solution to my issue. Apparently I had made a forum account and not a game account. Thanks for the confusion, and thanks for the quick replies. >.>