Am I using my Celestron 8 Schmidt-Cassegrain telescope correctly?
Keep in mind that many of the photos you see with colors are composite images.  To differentiate colors try to use some various color filters.

To see bands on Saturn, try using a yellow.  This will bring out different details in what you are seeing.   

This link provides some more details for using various filters.
http://www.telescopes.com/telescopes/howdifferentfilterscanbetteryourviewarticle.cfm