Could you check if you can reproduce my problem with Firefox and Quicktime in your Installations?
When I try listening to the AUdiostream with Quicktime at http://www.novaplanet.com , click at "ecouter" at the left and in the popup-windows choose "Quicktime" the Quiclktime-Symbol appears but the Audiostream does not start.
My installation: Neweste Firefox, newest Quicktime, WinXP with SP2.
Thx for your help finding out if it is somethiong with my personal installation or a generall problem.