Aiuto non si vedono le pagine della mia servlet!!!

Non mi si vogliono aprire!!

Mi da "Impossibile visualizzare la pagina" !!

vi posto il web.xml

codice:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <servlet>
    <servlet-name>TPCW_home_interaction</servlet-name>
    <servlet-class>pippo.TPCW_home_interaction</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_admin_request_servlet</display-name>
    <servlet-name>TPCW_admin_request_servlet</servlet-name>
    <servlet-class>pippo.TPCW_admin_request_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_shopping_cart_interaction</display-name>
    <servlet-name>TPCW_shopping_cart_interaction</servlet-name>
    <servlet-class>pippo.TPCW_shopping_cart_interaction</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_buy_request_servlet</display-name>
    <servlet-name>TPCW_buy_request_servlet</servlet-name>
    <servlet-class>pippo.TPCW_buy_request_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_order_display_servlet</display-name>
    <servlet-name>TPCW_order_display_servlet</servlet-name>
    <servlet-class>pippo.TPCW_order_display_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_admin_response_servlet</display-name>
    <servlet-name>TPCW_admin_response_servlet</servlet-name>
    <servlet-class>pippo.TPCW_admin_response_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_product_detail_servlet</display-name>
    <servlet-name>TPCW_product_detail_servlet</servlet-name>
    <servlet-class>pippo.TPCW_product_detail_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_search_request_servlet</display-name>
    <servlet-name>TPCW_search_request_servlet</servlet-name>
    <servlet-class>pippo.TPCW_search_request_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_execute_search</display-name>
    <servlet-name>TPCW_execute_search</servlet-name>
    <servlet-class>pippo.TPCW_execute_search</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_buy_confirm_servlet</display-name>
    <servlet-name>TPCW_buy_confirm_servlet</servlet-name>
    <servlet-class>pippo.TPCW_buy_confirm_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_best_sellers_servlet</display-name>
    <servlet-name>TPCW_best_sellers_servlet</servlet-name>
    <servlet-class>pippo.TPCW_best_sellers_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_new_products_servlet</display-name>
    <servlet-name>TPCW_new_products_servlet</servlet-name>
    <servlet-class>pippo.TPCW_new_products_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_customer_registration_servlet</display-name>
    <servlet-name>TPCW_customer_registration_servlet</servlet-name>
    <servlet-class>pippo.TPCW_customer_registration_servlet</servlet-class>
  </servlet>
  <servlet>
    <description>Default configuration created for servlet.</description>
    <display-name>TPCW_order_inquiry_servlet</display-name>
    <servlet-name>TPCW_order_inquiry_servlet</servlet-name>
    <servlet-class>pippo.TPCW_order_inquiry_servlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>TPCW_home_interaction</servlet-name>
    <url-pattern>/TPCW_home_interaction</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_admin_request_servlet</servlet-name>
    <url-pattern>/TPCW_admin_request_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_shopping_cart_interaction</servlet-name>
    <url-pattern>/TPCW_shopping_cart_interaction</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_buy_request_servlet</servlet-name>
    <url-pattern>/TPCW_buy_request_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_order_display_servlet</servlet-name>
    <url-pattern>/TPCW_order_display_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_admin_response_servlet</servlet-name>
    <url-pattern>/TPCW_admin_response_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_product_detail_servlet</servlet-name>
    <url-pattern>/TPCW_product_detail_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_search_request_servlet</servlet-name>
    <url-pattern>/TPCW_search_request_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_execute_search</servlet-name>
    <url-pattern>/TPCW_execute_search</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_buy_confirm_servlet</servlet-name>
    <url-pattern>/TPCW_buy_confirm_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_best_sellers_servlet</servlet-name>
    <url-pattern>/TPCW_best_sellers_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_new_products_servlet</servlet-name>
    <url-pattern>/TPCW_new_products_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_customer_registration_servlet</servlet-name>
    <url-pattern>/TPCW_customer_registration_servlet</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>TPCW_order_inquiry_servlet</servlet-name>
    <url-pattern>/TPCW_order_inquiry_servlet</url-pattern>
  </servlet-mapping>
  <session-config>
    <session-timeout>
            30
        </session-timeout>
  </session-config>
  
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>
</web-app>
Cmq la pagina index.html me l'apre!