how to use BooleanRT

I bought the MXD Bundle assets to use the BooleanRT package last month.
I just follow the below video to do the same thing, but when i click the [Execute] button in
the unity4.2.2's Boolean RT(Script) Inspector as same as the 49th seconds in the video,
the [Target] GameObject doesn't display anythings.
Please see attached screenshots.
Can you help me? or give me a sample scene?
http://www.youtube.com/watch?v=TSNadFy9W_0
Best Regards,
ryu