> I've one XML and trying to access the specific CDATA on XML 

There's no such thing as a CDATA node in the XPath data model: the text that
you write in CDATA sections in your input ends up in ordinary text nodes.
But that's not directly relevant to your problem.

> but when do
> this, I capture all CDATAs nodes. See the XML and XSL code bellow:
> 
>  // -----------------------------xml -----------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <scripts>
>    <etps total="1">
>        <etp id="200">
>            <![CDATA[Trying accessing only this]]>
>            <nvgs>
>                <nvg id="201"><![CDATA[blablablablabla]]></nvg>
>                <nvg id="202"><![CDATA[blablablablabla]]></nvg>
>            </nvgs>
>        </etp>
>    </etps>
> </scripts>
> 
>  // -----------------------------xsl -----------------------------
> //code's resume
> <xsl:choose>
> <xsl:when test="scripts/etapas/@total>0">
> <table width="100%" id="SCRIPT">
>    <tr valign="top" style="font-weight:bold;">
>        <th width="40%">etp</th>
>        <th width="20%">nvg</th>
>    </tr>
> 
> <xsl:for-each select="scripts/etapas/etapa">

Should I be reading this as select="scripts/etps/etp"?

>   <tr valign="top">
>        <td comment="ETP">
>            <xsl:value-of select="."/>

"." here gives you the string value of the context node (which is an
element): the string value of an element is the concatenation of all its
descendant text nodes. If you just want the value of the first child text
node, use select="text()[1]". Note however that this will give you the
whitespace characters that were outside the CDATA section as well as the
characters that were within it - there's no way of separating the two.

Michael Kay
http://www.saxonica.com/