You may need a moderator to answer that question about older versions of LW Pro. I am cheap and settled for LW Basic. I was going to load LW 5.4.6 but foound that I needed an update to Java to get the Basic to work. But Java 1.6 is only good for Intel Macs, so I had to resort to going back to LW 4.12 which I had on my Clamshell laptop