First of all, thanks to the CodeWeavers team for creating a simple solution to port applications to the Mac. Please support them by purchasing CrossOver through their site at CodeWeavers.com.
I've created a CrossOver 11 bottle that you can simply install on your mac for access to StreamTorrent.
Download it here.
To install it, from CrossOver, select Configure > Manage Bottles from the menu, then select "Add from Archive".
If all you get is a black screen, StreamTorrent is working, but for one reason or another WMP will not open. To view your stream, let ST buffer for some time, then open VLC, select File > Open Network... and open http://127.0.0.1:15900/1.asf
Problems, questions, or requests... drop me a line on Twitter at @macninj4.