Hidalgo, did you check out the small avi file I posted in the "how to create stars" post? That was done with paint fx and a sphere. One thing I did in the clip (you can sorta see it towards the end of it) is that the camera I created for the fly-through is parented to the sphere so when the camera turns, so does the sphere with the stars painted on it. I think it would look better without it though.
"Terminat Bora Diem, Terminal Auctor opus."