I downloaded the torrent and was able to open up the launcher. It said to use my warmane account username and password. I tried using it and it wouldnt work. I use authentication on email and it said it was good. I changed the realm list to the warmane account too under notepad. I could use my email but would start a fake update. Please update.
once the download is complete follow these steps:
1) Restart your PC
2) close your Torrent client and move your WoW folder away from your Torrent's download destination
3) now right click on WoW folder> Properties> remove "read-only"