Pyramid of spheres

Hi, and thankyou very much, all three... I have with yálls help managed 
to create the figure, or "mesh", just as it looks like in the picture 
http://www.makeanote.org/SamplePic.jpg
and also subsequently copy it and joining the copies aswell, thus 
creating a larger "tree"...This is a fantastic software, or is it 
perhaps "webware"?, and I will look for the manual...A manual would for 
sure be useful... I am currently slowly, slowly learning to attach 
writing to a UVsphere, and as far as I have understood the process up 
to now, the way to do it is to create a "textmesh", curve it and then 
join the curved textmesh with the sphere, thus creating one mesh out of 
it... So far, I can create the text-mesh, but not curve it... I have 
not seen anywhere any hint that it is possible to "write" directly onto 
a sphere, but it is perhaps possible using textures...? For now, I´ll 
stick to solve the curved mesh-mystery, and get the manual... Thanx 
again for all useful advice on the pyramid...
                                         Michael.