marco rizzi

Hi guys I am a newbie in Java Servlets and am currently working on a simple Java servlet. Well I'll try to describe my situation better:
I have a servletrunner file, a servlet.properties file, a servlet java class and an html form to submit messages;
This is the servlet.properties file:

servlet.servlet.code=servlet.class
servlet.servlet.initArgs=\
message="Example message",\

and this is my init method in servlet.java where I think the problem is:
public void init(ServletConfig config)
throws ServletException
{
super.init(config);
initarg = config.getInitParameter("message") ;
}

when i load the client html page in firefox and i type a message for the servlet then I have a 404 error and the shell running servletrunner prints out "Servlet not found: servlet".
Any idea about what's wrong???
Thank you.