You can use JBoss Tools Examples from "Help->Project Examples ..." menu and then type 'seam' in filter field to see what examples actually use seam
Selected projects below are seam 2.2 examples adapted for Eclipse and JBoss Tools
https://community.jboss.org/servlet/JiveServlet/downloadImage/2-732265-18496/450-591/Seam22Examples.png
Select one and wizard will guide through the process
