Hi, i have a problem, i have this xslt code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:msxml="urn:schemas-microsoft-com:xslt"
  xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" xmlns:tagsLib="urn:tagsLib" xmlns:BlogLibrary="urn:BlogLibrary"
  exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets tagsLib BlogLibrary ">


<xsl:output method="xml" omit-xml-declaration="yes"/>

<xsl:param name="currentPage"/>

<xsl:template match="/">

<!-- start writing XSLT -->

<xsl:variable name="sliderNode" select="$currentPage/parent::*/child::*[@level=1]"/>

  <xsl:for-each select="$sliderNode/child::umediaSlider">    
             
<div class="slide">
<a title="Noticia número 1" href="#" target="_blank"><img src="{umbracoFile}" width="547" height="230" /></a>
<div class="caption2"><xsl:value-of select="@nodeName"/></div>
<div class="caption">
<p><xsl:value-of select="teaserText" disable-output-escaping="yes"/></p>
</div>
</div>

</xsl:for-each>
</xsl:template>

</xsl:stylesheet>

and this template code:

<%@ Master Language="C#" MasterPageFile="~/masterpages/Master.master" AutoEventWireup="true" %>

<asp:content ContentPlaceHolderId="MasterHeadPlaceHolder" runat="server">
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/slides.min.jquery.js"></script>
<script type="text/javascript" src="js/function.js"></script>
<link href="css/global.css" rel="stylesheet" type="text/css" />
<!-- META Tag Macro -->
 <meta http-equiv="imagetoolbar" content="false" />
</asp:Content>
  
<asp:content ContentPlaceHolderId="MasterContentPlaceHolder" runat="server">
<div id="destacados">
<div class="titulo-seccion">Noticias Destacadas</div>
<div id="container">
    <div id="example">
        <div id="slides">
            <div class="slides_container">

<umbraco:Macro Alias="umediaSliderImages" runat="server"></umbraco:Macro>

<div class="clear"></div>
</div>
<a class="prev" href="#"><img alt="Arrow Prev" src="images/arrow-prev.png" /></a>
<a class="next" href="#"><img alt="Arrow Next" src="images/arrow-next.png" /></a>
        </div>      
    </div>
  
</div>
</div>
<div class="encuesta">
<div class="titulo-seccion">Encuesta</div>
<div class="encuesta-content">
<p>¿Por quién votarias en las próximas elecciones?</p>
<input type="radio" name="group1" value="Carlos"/>Carlos Gomez<br />
<input type="radio" name="group1" value="Jorge"/>Jorge Cuadros<br />
<input type="radio" name="group1" value="Pedro"/>Pedro Muñoz
</div>
</div>
<div class="foros">
<div class="titulo-seccion">Foros</div>
<ul>
<li><a href="#">Deportes</a></li>
<li><a href="#">Politica</a></li>
<li><a href="#">Cultura</a></li>
</ul>
</div>
<div id="resumenes">
<div class="left">
<h1>Titulo Noticia 1 {resumen}</h1>
<p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae e laudantium, totam rem aperiam</p>
<img src="images/res1.jpg" />
</div>
<div class="right">
<h2>Titulo Noticia 2 {resumen}</h2>
<p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae e laudantium, totam rem aperiam</p>
<img src="images/res1.jpg" />
</div>
<div id="bottom-content">
<div class="titulo-seccion">Asociación de Padres de Familia</div>
</div>
</div>
<div id="espacio"></div>
<div class="clear"></div>
</asp:Content> 

the macro file has been created too

i have created the document types "u.media sliders" and "u.media slider"

also i have created two child nodes from a parent node in the content panel

but the problem is the umbraco Macro with the alias: umediaSliderImages doesn't show the images slider.

What could be the problem?

Thanks for the answer.