Enabling Root Access
On Leopard:
- Open the Directory Utility: In the Finder, navigate to the Utilities folder (tip: click on the desktop, hit Cmd+Shift+U).
- Click on the padlock to allow edits.
- Go Edit > Enable Root Password
- Enter and re-enter your password.
The protected files on your system still won't be accessible via the Finder, and unless there is a setting I'm not aware of yet to enable that, the best way I've found so far to edit these files is by using TextWrangler, a free editor you can download here! Fire up TextWrangler and navigate to File > Open Hidden ...
You can also access them via the Terminal, if you like using the command line. I'm almost sure there must be a way to manipulate these files with a UI of some sort, but I haven't found that yet.

