How to use Node Editor for the Video Sequencer? How can I use the VSE with the node editor? I've tested about two addons and one script, and nothing has worked out. 

The best result was to use the VSE Compositor Node proxy, but it is only affecting the "Viewer Node" in the node editor. When I want to render an animation, 
it renders pure VSE sequence without compositing.

Can someone tell me about a good working addon like this for Blender 2.72 or at least try the script I mentioned themself on Blender 2.72 to see if it's working? (maybe I'm doing something wrong, and it's not about the new Blender version)
Make sure that you add the composited scene back to the sequencer or VSE, then check that the VSE scene has the render properties Post > Sequencer ticked.