Hi, I think there isn't any free soundpool available. We have to buy from Magix, Catooh or else.
But you know where threre is an internetl there is a way. I can not talk more check yourself. sssh! I do not know if it is right thing I am doing to share with you or not.

http://www.tactools.org/magix-soundpool-dvd-collection-11.html

http://rapidlibrary.com/index.php?q=magix+soundpool

You are at your own.

Thank you