First, don't revive really old threads. This thread is nearly seven months old
. I think it'd be okay to start a new one. Anyway, it's a bit of a complicated process, especially if you're not computer savvy. You need to combine the video and audio files and you'll probably want to convert them to another codec. Maybe someone else can go into more details, I don't have time at the moment.
By the way, welcome to the forums
.