Wicket request processing

Hi friends ,Am trying to learn how a request is getting processed in wicket .
gone through cwiki and apache wicket guide . got some idea , still exactly
am not able to get the concepts like A. How our inputs are passed to server
... Like server where we have req.get parameters workingB. Where are our do
get and so post method getting the inputs C. Where our servlet request
generated D. Basic idea with simple hello world example like thatI need your
help .... Please help me on this.ThanksKumar