If you can't find the program on a station near you, you can listen to it online at Public Radio Weekend's website. It seems like the piece will be up starting on Saturday and available all week.
Here are more specific details. All stations are on your FM dial and all times are the local time in that city.
Boston 90.9 WBUR - 2:00 PM
Los Angeles 89.3 KPCC - 2:00 PM
Seattle 94.9 KUOW - 2:00 PM
Minneapolis/St. Paul 91.9 KNOW - 12:00 PM
Orlando 90.7 WMFE 3:00 PM
There might be more stations but that's all I could find for now. If your city isn't listed, you can go to a listed station's website (www.wbur.org, for example) and click on "listen live" to hear it online. After that, check the Public Radio Weekend site for the archived piece.
The piece is online. Click on "hour one" underneath the banner that reads "Featured stories for June 5, 2004."