Background Images - "Skybox"

I've set up six images in the background images tab. left,right, front, back, top, and bottom respectively.

I have turned off all of the sky options in the world tab.

only getting a grey environment when I export to html

how do I get these to display in the 3d view port?
and
how to i get them to render as a static "world environment background ?

Thanks in advance
C

I've set up six images in the background images tab. left,right, front, back, top, and bottom respectively.

Background images doesn't work in the engine and I think will never supported because even in blender it just for temporary artist's needs during modeling.

how to i get them to render as a static "world environment background ?

You need to bake it to cubemap, watch this tutroial.