Go to the video on youtube, copy the link from the address bar and select "Add video". On where it says, "URL" paste it there, add keywords, a tajuk and click "submit".
If it goes on invalid, try putting it from another website (veoh, dailymotion, etc..) atau make sure the video isn't on private. That way, it won't work..
anda should try another video because if it's invalid it means somebody has already put that video into the club, it's probably really hard to find a video that hasn't been added onto a club. Try using a video that somebody has telah diposkan this week, a new one.