How do I add music songs for download in my vbulletin board?

[Nadeemjp]

Hello there

I think I asked on a few occassions about this. I want to add a music library where users can download the songs but only after subscription. For that I need 2 things:

1) Ability (mod or hack) to offer subscription.
2) upload and then download the music songs

I would like to know that how i can do this and is there any legality involved? I mean copyrights and stuff? if so, is there any way to get around it? cause i have seen thousands of forums providing this facility to their users. do i need to register for that? do i need to pay for that? what is the procedure for that and where should I contact whom for that?

I would highly appreciate my fellow friends' advice on this.

Thank you
Regards