How was the character Emmet chosen to guest star on a special episode of "That's So Raven" on Disney Channel?

The character Emmet (played by Shane Haboucha) was a hall-monitor who booked Raven for singing in the hallways.

Quote from:
http://www.imdb.com/title/tt0720520/

Emmett: A-ha! Singing in the hallway? You'll be spending lunch in detention.
Raven: What? You little power-trippin', grade-skippin' wannabe police cape, Emmett.

HOW was he chosen?

Audition to Action dealt with auditioning to be on an episode of That's So Raven. The episode of That's So Raven that featured the winner was "The Road to Audition." Who was able to impress the judges to guest star on That's So Raven? The winner was.... Shane Haboucha.

http://www.tv.com/audition-to-action/show/29360/summary.html

THE ROAD TO AUDITION (Episode on That's So Raven) -- "Building up to this episode a five-part short program named Audition to Action showed the process of Shane Haboucha getting the part of Emmett the hall monitor."

http://www.tv.com/thats-so-raven/the-road-to-audition/episode/322045/summary.html