Here is another solution using WineBottler:

1. Get or Have X11 (It is installed in Snow Leopard)
2. Install WineBottler
3. Using the WineTricks of WineBottler, install the VLC player from the menu of choices (you can try MP9, but I had some issues with it)
4. Quit Wine, then Restart Wine
5. Download Sopcast 3.2.4 and click on the exe file (wine will auto install)
6. Quit Wine, then Restart Wine
7. Open Sopcast.exe from Wine File Manager, login anonymously, go to Option tab at the bottom of the window
8. From the Option tab - click on the box 'use my own media player' and then browse and link the VLC.exe in the VLC file folder
9. Start stream using sop address. (Because the direct links don't with your Mac browser, you need to right click on the link and select 'Copy link location' and then paste into your Sop browser bar)
10. Player will slide out and buffer, but will not show anything.
11. Click on the Pop Video Player Out button of Sopcast (the overlapping square buttons to the left of the play button)
12. VLC will pop up and stream will play bee-yoo-tee-fulll-eeee*

* Note: when you want to quit or change streams, SopCast locks up when you close the VLC window. You can easily shut it down by using the Task Manager of Wine and then restarting SopCast