Drop them in the "Settings" folder in here: /Users/<username>/Library/Application Support/Adobe/CameraRaw
Thanks, I knew I was supposed to do that, but couldn't find my user/library folder. After some more googling, it's because the library folder is hidden in Lion... bah! Had to go through a few steps to unhide it -- and then was able to find the CameraRaw/Settings folders!
How did you 'unhide' it? I am currently having the same trouble.
I used the instructions I found here: http://www.macworld.com/article/1161156/view_library_folder_in_lion.html
I ended up putting a shortcut to the library folder in my finder-window toolbar (instructions about halfway through his article). Worked great...!
Hope that helps you!