As a ex NetSuite employee I was frustrated by this time and time again, even internally there is no good refs other than the published pdf's in dev docs.
One of the best places for snippets of code and clues of how to do things is the NS User Groups as well as the not so good sample apps.
A lot of it is done with trial and error. I have found developing web services a little lest frustrating than the client and server side scripting.
B
