All you need is sopcast (http://download.easetuner.com/download/SopCast.zip)
I also couldn’t get wiziwig to work properly (this despite reading and re reading the detailed instructions) and downloading the sopcast program, I found that sopcast still wouldn't play the requested feed.
For what it’s worth the way I resolved my particular issue was before clicking the “play now!” button on the selected feed, right click and copy the link address, then click "play now!" and paste that link into the address box at the top of the sopcast box, then click the blue play button.
By the way I agree with the majority, bloodzeed is excellent.
Hope that helps