Each brand of cloth diapers has their own set of washing instructions, so I've included a link to each site below.  It is not necessary to do different loads for different brands but you can if you want to.  I have found that a good routine is 1 rinse cycle on cold (no detergent) followed by 1 regular cycle (with detergent), and machine dry for 50 minutes.  You can also dry your clothes on a line if you prefer.  In fact, it's recommended to expose them to sunlight occasionally (I do it every 3 weeks or so) as the sun bleaches the fabric, so give this a try if you feel your diapers are starting to get a little dingy.

Soft Bums: http://www.softbums.com/Echo-System-101_ep_44-1.html

Happy Heinys:http://www.happyheinys.com/caring_for_diapers.php?t=1

Knickernappies: http://www.knickernappies.com/care_instructions.html

Rumparooz: http://www.rumparooz.com/faqs.php

Note: Cloth diapers only require 1/4 to 1/2 the amount of detergent as recommended on the box per load size.