>>Hmm, I'm using FireFox. I see there is a WMP plugin for FireFox. I've just installed that. Maybe you could reply to this and I'll see if I can hear the sound?
>
>Here is the reply.

Hmm, still not working in FF. Here is the plugin info from about:plugins

Microsoft® Windows Media Player Firefox Plugin

File: np-mswmp.dll
Version: 1.0.0.8
np-mswmp

MIME Type 	            Description 	  Suffixes 	    Enabled
application/x-ms-wmp 	    np-mswmp 	          * 	            Yes
application/asx 		                  * 	            Yes
video/x-ms-asf-plugin 		                  * 	            Yes
application/x-mplayer2 		                  * 	            Yes
video/x-ms-asf 		                          asf,asx,* 	    Yes
video/x-ms-wm 		                          wm,* 	            Yes
audio/x-ms-wma 		                          wma,* 	    Yes
audio/x-ms-wax 		                          wax,* 	    Yes
video/x-ms-wmv 		                          wmv,* 	    Yes
video/x-ms-wvx 		                          wvx,* 	    Yes

There is an interesting thread here about this topic (a few years old, don't know if it's still relevant): http://forums.mozillazine.org/viewtopic.php?p=2200102