We've recently changed how our audio and video files are stored and accessed. You should be able both to download and to play the files.
If you are having issues downloading or playing the files please let us know via the audio library here .
Similarly we would like to hear if you have a preference on how we make audio files available.
For those who are interested we are using godsweb for hosting.
There are cue files for some of our sermons and lectures here.