hi to all, plz tell me how to download mp3 player application in my Nokia 3120

plz also tell me the sites where i can download the software, and i hv mp3player2.1.sis and mp3player.app files but can't works for my Phone error is can't recognize the it will accept only *.jad file plz there is n e of these convert in to the jad file plz let me know.

u all can convert the *.jar to *.jad file with jadconverter