Just to add to save you downloading again try and delete the unziped game files and then unzip the one file again providing you have kept the original zip file,i had the same problem save yourself loads of time. 8)
Having a problem,downloaded the zip file (pook's) thing is it only contains 3 files do you have to copy the files from the other download into pook's hi-roller comes up invalid prog roms,invalid sound roms.Cos im thick 8O