[xsl] how get the correct value?

["Carlos" <linux@xxxxxxxx>]

if i have this xml:
<PARRAFOS>
            <IMAGEN>3.gif
                <TEXTO>asdf asfd sfd afas fasfd</TEXTO>
                <TEXTO>asdf asfd sfd afas fasfd</TEXTO>
                <TEXTO>asdf asfd sfd afas fasfd</TEXTO>
                <TEXTO>asdf asfd sfd afas fasfd</TEXTO>
            </IMAGEN>
            <IMAGEN>5.gif
                <TEXTO>asdf asfd sfd afas fasfd</TEXTO>
            </IMAGEN>
             <IMAGEN>
                 <TEXTO>44.gif</TEXTO>
            </IMAGEN>
</PARRAFOS>

how , with xslt, can i get:
3.gif <br/>
5.gif<br/>
44.gif

can any body help me?
i am using this, but it doesn't runs:

<xsl:for-each select="PARRAFOS/IMAGEN">
<xsl:variable name="sGif" select="normalize-space(text()[1])"/>
<xsl:choose>
    <xsl:when test="$sGif">
      <xsl:value-of select="text()"/><BR/>
    </xsl:when>
<xsl:otherwise>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>



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