I am not sure what you have in mind when you say a tutorial. There are some tools called JavaHelp that Sun has to help create your cusomized "help" for you application. You also might want to look at the Advanced Imaging Tutorial (as well as noticing HOW they created the tutorial).
"JavaRanch, where the deer and the Certified play" - David O'Meara
subject: Source code for a creating a tutorial in java using JMF