Personal sounds for everything (notifications)?

[Endonesia]

I did a pretty extensive search, so sorry if my request has been asked and resolved in another thread, searching though, the best thing I found was using regedit to add sounds to the existing ones when opening up the 6800, basically what I am looking for is a way to add more sounds to the list of notification sounds, that way I can customize different sounds for different notifications and not have to use the default sounds. Now, I did find a thread where someone was almost requesting the same thing, but it was of no help, so, if anyone has any input on this, or knows how to do this, it would be much appreciated if you could let me know how to. And thanks in advance.