music libary

I don't know about nat's, but for everything else I have done that by installing the mgMedia Bot. Works great for UHP2

put the link of the uploaded mp3 file to the player (in edit mode)

If Jinzora isn't doing the job for you, I suggest you try Zina . In addition to standalone Zina you will also need the "helper" files that will allow it to be installed and configured as a Joomla component. I have had no problems running it on my site. I've also tried Jinzora but found that Zina works much better for me. However, there is no specific CB integration.

i can install zina and edit it tru the admin panle
but i can't open it on the frontpage :S