Hello! You shouldn’t need a program to download the file; just click the download link on the MediaFire page and the download should begin immediately, regardless of your browser. Once you’ve downloaded it, however, you’ll need a simple RAR converter (such as SimplyRAR or Stuffit Expander) to extract the mp3s.
I hope this helps. If not, please either message me off anonymous so I can offer you more tailored assistance privately or, if you don’t have a tumblr, you can message me on M&S Blog’s Facebook page. Cheers!