Thanks for the help Mike! As I said before, I might get the hang of this thing at some point.
Also, looking back to my previous thread, I want to make sure it was understood that I was only asking, initially, about uploading the mp3 mix of the song, not the entire video file.
I really think the mp3 audio sounds better than the wave file attached to the vid because my first mp3 mixdown I did to send an email attachment to a friend sounded so bad and highlighted so many bad levels that I was forced to go back and re-mix the original wav audio file to correct it and then did another mixdown to mp3. I never got around to attaching that file to the vid and reloading it, though.
Just a clarification, thanks for the help!