I got it working. On your PC go to the link above, the alp_schedule.htm link (requires login on nba.com). Find your team's game if they are playing that night and mouse over your team. in firefox you will see at the bottom the link that will be called via javascrpt. It lt looks like this:

http://boss.streamos.com/wmedia-live/nba/7260/20_nba-golden_state_audio_040930.asx

plug that in to PIE/WMP and go!

Nice find!