Dan, 
For the last day or so I've been trying to wrap my head around how LV implements OOP.  The examples included with LV weren't cutting it for me.  Then I came across a NI Week presentation with example code while browsing the NI web site.  I understood this example code better than any of the examples included with LV.  Maybe it can help you too. 
http://secure.niweek.com/published/I80_Geh...resentation.zip 
Have fun with it.