I am so sorry did not answer sooner.

I suppose you use pd-extended for mac, and the wiimote is connecting to the musiccontroller. So what you have to do is press the "connect button"

If pd and music controller are in the same computer, you have to leave 127.0.0.1 and the ports must be equal in both programs.

If you are sending osc through the network, just put the IP of the computer which is running PD.

Maybe you changed the destination path?

I made a small open source program for OSX: http://code.google.com/p/musiccontroller/downloads/list

In the download page you may find also a pd patch to check the data sent from the wiimote.

Hope this helps

you can use this instead:
http://code.google.com/p/musiccontroller/downloads/list

It's open source and it sends midi and OSC messages.

Hope this helps.

Anyway, is there a pd object for the wiimote yet?