I am also having problems with their samples. I'm trying to get Chapter 5 to work and no luck. I was finally able to get the word Attachment to show in the dropdown list when creating a Content but the fields do not exist when creating a Content. I am using Alfresco 3.2.
Also, I have downloaded their SDK and following the Developer API Guide. I'm following steps in the guide. I have imported the SDK into Eclispe and guess what? It does not work either.
Why can't Alfresco write a document that is clear and works?