OK! I think I've got a handle on this, although it might need a bit of tweeking. The thing is that they do allow you a little bit of leeway, but there is one big rule! DO NOT adjust the size of the Grid Plane or the Size of the Sphere.

1. Download  the Wavefront.obj Template.

2. Unzip to a new folder.

2a) Open Bryce and set your page size to 800 x 800

3. Import the sphere_template_wavefront.obj

4. Select DIRECTOR's VIEW

5. Rotate the .obj and adjust the sun to suit your needs.  This is just a quick repoz so that you can see what you are doing.

6. Select the TEMPLATE PLANE (that's the ski-slope bit) and select the attribes icon.

7. Input the data on from the first of the grids I've screen-capped here and OK.
       Remember - you shouldn't need to adjust the SIZEs - just the Position Attributes.

8. Double-click on the TRACKBALL and when the DIRECTOR grid appears, enter the data from the second of the grids I've screen-capped here.

9. Render at any rez you like.

This should give you a pretty good start when you compare your render to the SPHERE_TEMPLATE.JPG they've included in the zip file you downloaded.
You can hide the sphere until you finish setting things up.

Now go to work on your scene, but remember - DON'T ADJUST THE DIRECTORS VIEW AT ALL EVER UNDER ANY CIRCUMSTANCES.
I've done it this way so that you can use the CAMERA to work on your scene.

If I've got any of this wrong or you can do it better - knock yourself out!
You must carefully read the rules/instructions they include in the zip.

Goodluck!

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All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...