Folks, I wrote a quick command line utility for developers interested in what FindFolder() does under Mac OS X 10.1.x. You can pass macpaths a domain and folder constant as outlined in folders.h and see where the Folder Manager will point you. It's interesting to see where the different domains are routed if you write installers or access different special folders in the file system through FindFolder().
You can grab it at:
http://homepage.mac.com/cgervais/software/index.html
Let me know if you have any issues. It's my first release of a C-based tool. Hopefully I can get a GUI version together with some more functionality. While macpaths output is interesting, I'm also using it as a learning tool to get back into programming C and using some of the new system APIs on Mac OS X.