If you're having trouble getting your Wacom table to work with Inkwell in 10.2, go to your Preferences folder (in the Library folder inside your user's directory), and remove these files:
com.apple.ink.framework.plist
com.apple.ink.inkpad.plist
com.apple.ink.inkpad.sketch
Now launch the System Prefs application and fire up Inkwell. Everything should work.
[Editor's note: I had no 10.2/Wacom issues, but if you are having troubles, try this hint as well as this one.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20020930061652961