I made this remix with the piano instumental of Numb and vocals of High Voltage, it has a good begining and ending, and the chorus matches up with timing.. Check it out http://www.badongo.com/file/1349805
Pretty much of a grey area is remixing in the forums, some people get away with posting in LP Central because its an LP remix other forms of remixes tend to be left for the forums 'Other Artists'