La li todos os topicos sobre o assunto aqui no guj e no stackoverflow e ainda nao consegui resolver o problema, estou realmente desesperado 
estou recebendo este erro do JSTL
[color=red] Set 03, 2012 6:37:28 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/JSTL] threw exception [The absolute uri: http://java.sun.com/jsp/jstl/sql cannot be resolved in either web.xml or the jar files deployed with this application] with root cause
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/sql cannot be resolved in either web.xml or the jar files deployed with this application[/color]
Minha declaração esta assim
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
e o XML
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>ALGO</display-name>
Os arquivos standard.jar e jstl.jar estao no lib do Tomcat mas mesmo assim nao funcionam alguem tem alguma ideia?
Muito obrigado!
!