This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
Seam is designed to work with the Java EE platform, not RCP. I'm sure there are people who are trying to extend Seam's reach into other areas such as RCP, but that is not its primary focus. Thus, you won't find it in the book, as you have observed.