easiest way I know how to get you playing a game here on RU to youtube is
1. Download a free program called camstudio (
www.camstudio.com)
2. play the game and record with camstudio it will make an .avi movie file which can be uploaded to youtube.
3. you may have to use a movie editor software (google search for a free one) to chop the movie to under 9:59 second bits
4. upload the parts to youtube.