Directions:
1. Download your favorite login screen from down below.
2. Extract the contents within the downloaded ZIP directly into your World of Warcraft folder. Select yes to merge folders.
3. Download the latest patched exe from below's link. Backup your original exe or rename the patched exe. Go into properties of the patched exe and unblock it and have it run as admin.
4. Run the patched exe and drool over your keyboard while you look at your favorite login screen.
Get the latest patched exe from here: