This is amazingly annoying trying to get everything matched up right. Here's a screen capture of how's it going for me. I am overlapping their template image over the Bryce window (I made this little transparent window at 800x800 to compare as Bryce renders.) It might be a little hard to see, but the Bryce rendering are the faint lines. I haven't messed about with the sphere yet.

But it's like harder than pulling teeth. Has anyone had more success?