I think you speak about two different things. The Wacom board is in the original question not wished to be used to produce pictures. It's a wish to use it in Writer to, instead of key board input words, recognize handwritten words on the Wacom board.
Wacom has a program "JustWrite" for that and its works with MS Office.
I think Wacom must be pushed to do something about this, but maybe there is someone handy man that can make a OOo plug-in?
OOo 3.0.X on MS Windows Vista