101312 Show the latest mp3 link

hi I got mp3s uploaded to my website, its an archive of the live radio shows I do. What I want is someone to replace the mp3 file thats linked into the media player embeded player, with the latest mp3 i upload. So what i do is. 1. upload mp3 2. the player to grab the latest mp3 and use that as the stream until next "latest one" is put up. the script shall only see the latest mp3 in the "folder" i specify.. and recurse it. should be quick for anyone who knows what I mean :) to see what i have done manually check out [login to view URL] and then click on "missed a liveshow" .. there i have manually put in the mp3..