If your are going to use Seam Remoting, the Seam Resource servlet must be configured in your web.xml
<servlet>
<servlet-name>Seam Resource Servlet</servlet-name>
<servlet-class>org.jboss.seam.servlet.ResourceServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Seam Resource Servlet</servlet-name>
<url-pattern>/seam/resource/*</url-pattern>
</servlet-mapping>
To import Seam javascript responsible for Remoting please use the component Remoting. The parameter include expects a comma-separated list of Seam component names.
<t:remoting include="bean,user,foo"/>