Choose your side, Alliance or Horde and copy folder frome one of this folders to your WoW folder.

You can make your own background. Just find graphic you like. Change this graphic resolution to 2048x1024, save file in TGA format, and change file name to Circle_Smooth.tga then copy to AddOns\WeakAuras\Media\Textures

In game, import settings to WA, and import setting to Move Anythig.
