To be able to listen to the music, you'll have to go to 

And after that loads, log in under the username and password as follows:

You should be able to be logged into the account after you enter that information.  To listen to the music, click on the little tab labeled "my music." You can click on artists, all tracks, or albums to view the songs.  I personally recommend to view the songs by albums, it seems to be most organized as it gives you the artists as well.  Then just click on the album you want to listen to and track listings will appear.  If you have problems with skipping, try turning the playback to lo-fi.  Only use hi-fi if you have DSL, Cable, or T1/2/3.  And I encourage you to add albums if you want to also.  Just download the beam-it software, and follow the instructions.