youtube problem;

what format is your video in (.mpeg, .mpg, .avi, etc)? sometimes some recorders/cams has their own unique file that only their unique video players can view. when youtube uploads a video, it converts it to .flv file (a flash file). and converting things to and from flash files like .swf or .flv, it gets pretty trippy, which is why your video is out of sync.

you might need a converter to convert your video into something like .mpeg, .mpg, .avi, .wmv before uploading to youtube and that might fix it.