Are there any scripts for making radial tree map diagrams? If not, and since I lack the coding skills, can I put in a request for this?
Example: http://chasedouglas.net/wp-content/uploads/2013/06/sunburst1.png
What do you think?
What you're asking for is called a Sunburst Layout/Partition. I recommend that you use a library like D3.js that has this function built in:
http://bl.ocks.org/mbostock/4063423