The newest version includes rom dumping in the executable. Just try to run a large ROM and it will automatically dump the graphics. This also should've been in the forums around here, maybe in the included readme.
LOL, Just try and run the rom and a little message will come up that it can't run and it has to be dumped. It then instructs you to hit a button ("A" I think) and it dumps it for you. H.G.