How can I get files from a music blog to play in a separate window rather than opening windows media player?

Up until recently, a i used to be able to listen to a song on a music blog by clicking on the link and it would open a new tab to play in...now it opens my windows media player and plays it that way. im sure how this happened but i dont like the fact Windows media player is opening everytime. (not sure if it helps any, but i have windows xp)

thanks.

Here are step by step instructions to add Mp3 music on blogger without using media player

http://tipsforwebsite.blogspot.com/2008/08/how-to-add-mp3-music-to-blogger.html