How did you customize the billboards and hud?
billboard and huds?
you need texmod to extract the textures but make sure you delete 8dll and 9dll then you select any textures by - & + then press enter and it will bring you textures but play the game and select any levels that haves billboards including created park
you can edit billboards, I use gimp.
THUG Pro billboard random changes if you pick any level has billboards