I recommend Netscape , version 2.0 or later. The Windows 3.x versions of Netscape 2.x and 3.x don't support Java. You can download the JDK from Sun Microsystems . Click a cubelet face, move the mouse in the direction you want the slice to move to, and release the mouse button. Press the Ctrl-Key at the same time to move the whole cube.
More detailed instructions are available.