normaly i do not render in cycles and i lost the tut i had on skydomes that actualy worked

i have hundreds of hdri images and need to use 1 for a sky for a render

so i need to ask others how do i make the dome?

im rendering in 2.63a for this one because its where i started the scene and i dont want to transfer it

i guess i should learn how to render better instead of just modeling