Changing location from a nautilus plugin

[Devon Jones <soulcatcher evilsoft org>]

Hi, reading through the documentation I can find, there seems to be a 
lot of ability to extend nautilus to let things people select in the UI 
have additional functionality.  What I don't seem to be able to find is 
anything that lets a plugin 'drive' nautilus.  I'm working on a plugin 
that needs to be able to change what folder the current nautilus window 
has opened.

Is there anything I can do?  DBUS? some sort of hack?

I have a class that is extending LocationWidgetProvider, and based on 
certain events, I want it to be able to change what directory the window 
it's embedded in is pointing at.

Thanks,
Devon Jones