you need the following jars :
plus JSF 2.0 lib, since i'm using JBoss 6 it is alredy bundled with AS,.
I am already have a working project but what i was looking for is an official runable project from JBoss ,anyway i catch what was the problem it was a bug in a4j:commandButton.
the links i mentioned include the working projects and they have readme.txt files to guide you and pom.xml packed with them. Just run the maven install/build it will download the required jar files. And you would be good to go.
Especially look into richfaces-showcase example, this is perfect ready to go deploy.