I use zina script for displaying mp3s on my site. you can google "zina pancake" and see the script. it is a very famous script such as andromeda to display and stream media files.
Basically it reads all the folders with mp3 and media files.
for media files such as wmv and mp4 it uses embeded quick time player to stream. I basically want it to use jwplayer instead of the quick time player.
It should be an easy job. PM me for more info.
My budget is 20-30US for this.