Do VX's have the drum brake inside the disk brake rotor in back like the Rodeos? Never sure on those. If they do it is really easy to do. This video shows pretty much all you need to know.
http://www.youtube.com/watch?v=iN6z0oIZLBk
I use a brake adjuster tool instead of a screwdriver just because its easier and they are cheap. I can never remember which direction to turn the star wheel so I just turn it while turning the wheel and listen for the difference. If it stops making contact I turn it the other way.
--Dave