I tried via Steam, But ET:Legacy was what solved things for me. I think the reason for ET:Legacy is that original ET is not compatible with newer OS's, other software and hardware?
In any case, how sad this game didnt become the CS. I played this like crazy when i was a kid, I had a serious period with this game. And then CS came up on top, while this game is much more fun actually.
I wish someone could remake the game for modern platforms, and keep the other mechanics approximately the same.