Oh.
Also, the way it's done right now wastes a fuckton of bandwidth (people uploading stuff before checking if there's an available slot).
Why don't you make it check server load upon clicking "Upload Replay", and then, if it's available for someone to make a video, have the browser upload the file(s) and start recording (if possible, have that client get a reserved slot for 20 seconds or so, this way it'll be more friendly to people with low bandwidth who want replays recorded with a certain skin).