If you'd prefer to use email, you'd want to contact the Programming department at: programming@kumoricon.org.
If you can make it to a general staff meeting, you'd want to talk to Jaki Hunt, who is in charge of the department this year. Currently, the location of the next meeting has yet to be revealed, but it is scheduled to be on Sunday, June 14 (the week before Father's Day), and it should be somewhere in the Portland/Vancouver area.
Good luck!