environment mapping shader for A6

hello everyone.

Is there an environment reflection shader that does not use a cubic environment image (up down left right view), with adjustable strength/reflectivity? A few programs I have played with are able to take an image that is say 512 x 512 and wrap it around the geometry. This 512 x 512 image is not made up of different views, but a single view.

Im using A6 professional, and the cubic environment shader I got from the wiki looks very weird:

Shader Template from A7. Try to convert it to A6.