The HUD had to be moved because I had to remove the viewport from nUI with the graphics rendering bug that was introduced in the WoW 4.0 patch. Right now it is being moved a default distance which may or may not be right for your display resolution. You can manually adjust the HUD location using the following commands...
- /nui hud vofs {n}
This option sets vertical offset of the HUD from the center of the view port. The default is '/nui hud vofs 0' which places the HUD at the vertical center of the viewport. Values less than 0 move the HUD down, greater than 0 moves the HUD up
This option sets the scale of the HUD where 0.25 <= {n} <= 1.75. Smaller values of {n} descrease the HUD size and larger values increase the size. The default is {n} = 1
Between the two of them, you should be able to set the HUD pretty much as you like. Just be aware that when the graphics bug gets fixed and I restore the viewport in nUI, you will need to adjust these values again.