http://www.blogcatalog.com/search.frame.php?term=topsy+turvy+cakes&id=20b2e5738f12db748c01086532de9176
Came across this on a cake blog.
Thanks so much for providing this tutorial. 
I've already provided the info to another member:
http://www.cakecentral.com/cake-decorating-ftopicp-6498670.html#6498670
Hey guys, I just thought I'd add a link for a video that shows another way to doing a topsy turvy cake. What I like about this way is that the centers of each of your tiers are truly lined up, even though they appear not to be, therefore you are able to get a very secure cake with one long dowel completely through the center. Disclaimer: I do not own this video, it belongs to "Janellscakes" (a youtube screen name). Here is the link:
He is talking about cutting it but not the support system..Did I miss that?..
Edna
Correct, he did nothing on the support system, but I have seen plenty of information on how to do the support. I just thought the carving part was really easy. I tried to carve a practice one the other week and I did not get the look I wanted. Then I came across this blog and the stacking the cakes on the cake pan and putting the smaller cake board on top and using it as a guide would work better for me. Just thought it would be useful for others as well.
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