upload permission alert with struts2 filter

Sorry by the bad english...i am brasilian

i got a project in struts 2.0.11 and fckeditor 2.3 (jar) done for ie.
i had to do a upgrade in struts due to problems and maintence of the project....
then i upgraded to struts 2.1.6 with dojo plugin....

then i begin to have problems with the fckeditor component, the problem was when i tryed to do an image upload,
it keep on loading, and get stuck in there. And did not done the upload at all and neither finish the loading.

i saw in somewhere i had to upgrade the fckeditor as well, so i did....
now i am using the fckeditor 2.4.1 (jar) and i still have image upload problems, but this time i got a alert saying that the user does not have the permission

here is my codes:

fckeditor.properties:

 connector.userActionImpl=net.fckeditor.requestcycle.impl.UserActionImpl

jsp:

 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"  pageEncoding="ISO-8859-1"%>  
 <%@ taglib uri="http://java.fckeditor.net" prefix="FCK"%>  
 <%@taglib prefix="sx" uri="/struts-dojo-tags"%>  
 <%@taglib uri="/struts-tags" prefix="s"%>  
 ...  
 <s:form action="myAction1" namespace="/admin" method="post"  
     id="formulario" enctype="multipart/form-data">  
     <table width="740" border="0" cellpadding="5" cellspacing="0" id="form">  
 ...  
         <tr>  
             <td class="tdLabel" width="10%"><label class="label">Texto</label></td>  
             <td width="90%"><FCK:editor instanceName="form.texto" width="600"  
                 height="500">  
                 <jsp:attribute name="value">  
             ${form.texto }</jsp:attribute>  
             </FCK:editor></td>  
         </tr>  
     </table>  
 ...  
     <table width="740" cellpadding="5" cellspacing="0">  
         <s:url id="urlBt" value="/pages/admin/images/botaoSalvar.gif" />  
         <s:submit type="image" src="%{urlBt}" cssClass="botao"  
             onclick="javascript:return validaForm();" />  
     </table>  
 </s:form>  

web.xml:

 ...  
     <filter>  
         <filter-name>struts2</filter-name>  
         <filter-class>  
             org.apache.struts2.dispatcher.FilterDispatcher  
         </filter-class>  
         <init-param>  
             <param-name>actionPackages</param-name>  
             <param-value>br.com.intranet.struts.actions</param-value>  
         </init-param>  
     </filter>  
     <filter-mapping>  
         <filter-name>struts2</filter-name>  
         <url-pattern>/*</url-pattern>  
     </filter-mapping>  
 ...  
     <servlet>  
         <servlet-name>Connector</servlet-name>  
         <servlet-class>  
             net.fckeditor.connector.ConnectorServlet  
         </servlet-class>  
         <load-on-startup>1</load-on-startup>  
     </servlet>  
     <servlet-mapping>  
         <servlet-name>Connector</servlet-name>  
         <url-pattern>  
             /fckeditor/editor/filemanager/connectors/*  
         </url-pattern>  
     </servlet-mapping>  
 ...  

when i take the struts2 filter off the web.xml, the upload works fine