web.xml not working? help!

Hi, I am able de deply correctly on tomcat, but on jboss 4 I have this problem:

When I run my servlet from the browser it says that the resource is not avaible, without any exceptions on the console, it means that couldnt find the servlet to display. But the web.xml is inside the WEB-INF folder and is correctly done, I have reviewed and remaked it several times.

Any idea of the problem, I am using windows XP.

[431 byte] By [MelGohana] at [2007-10-3 2:39:59]
# 1
Copy here the contents of <servlet> and <servlet-mapping> elements and the URL u r using in browser.
frank26a at 2007-7-14 19:38:16 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 2
possibly u might be using the wrong port number on Jboss.
RohitKumara at 2007-7-14 19:38:16 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 3
No, the port is okay, because in fact jboss is running, but the servlet is not loaded the mesasge on the web page is a message of the jboss. About the code give some time to post it.
MelGohana at 2007-7-14 19:38:16 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 4
Did u put the servlet class files under /WEB-INF/classes folder ?Also test a simple jsp page if its working to check ur WEb application was deployed properly.
RohitKumara at 2007-7-14 19:38:16 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...