minecraft piston mod

download here http://www.minecraftforum.net/viewtopic.php?f=1032&t=247686&sid=3fd086236d7f7cf19b42b9098ccc1949 and modloader here http://www.minecraftforum.net/viewtopic.php?f=1032&t=80246&sid=3fd086236d7f7cf19b42b9098ccc1949

you will need 7-zip here http://www.7-zip.org/ here is what it is