download this PDF and read it,
http://www.elationlighting.com...dmx-101-handbook.pdf
then if you still need help let us know.
Also the second row of faders on your S.S. 24 maybe your sub faders. do you have a a and b bank buttons or a bank button anywhere on the console? i am unfamiliar with the S.S. 24 as i have never used it.
Sincerely,