> Quote - > The Diffuse_Value and Specular_Value should be 0, and the image connected to Alternate_Diffuse, or to Ambient_Color with Ambient_Value = 1. Whatever it is connected to should be white.

Thanks I have downloaded your Free EnvSphere and put in my Scene
Then I got this Image but didnt' got the nice render
In the Material Room I selected EnvSphere and connected this Image in Panoramic Image Source.