I downloaded the osz a while ago. I'll redownload the osz and find out.
EDIT: Did not get video. Is the video in the same folder as the song and .osu file? Also, if it's not attached to the actual .osu file, make sure it is before you Upload Beatmap and select "Force .osz reupload".
To ensure that it's attached to the .osu file, add the following line under [Events]:
1,0,"videofile.avi"
where "videofile.avi" represents the name of the, well, video file. The video may not be synced up with the song, but at least then when it is uploaded, the video should go with it and I can synchronize them for you.