1.Create an account here
MINIMAL client (Recommended) 2. Install World of Warcraft Cataclysm 4.3.4 15595. You can download it from here: Windows. 3. After your download is complete, open realmlist.wtf.
4. Erase all text and change it to: set realmlist logon.tol-barad.com
You may now start playing! If you need any help, do not hesitate to create a support ticket. Remember, the MINIMAL client will stream (download) game files as you play, the first load-ups may take some time.