Ayuda! feed rss para mi web

<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:media="http://search.yahoo.com/mrss/">
<channel>
            <title>TITULO SITIO</title>
            <atom:link href="http://www.misitio.com/rss" rel="self" type="application/rss+xml" />
            <link>http://www.misitio.com/</link>
            <description>Descripcion del sitio</description>
            <pubDate>Tue, 04 Oct 2015 23:00:00 +0000</pubDate>

            <generator>http://www.cicklow.com</generator>
            <language>es</language>
            <sy:updatePeriod>hourly</sy:updatePeriod>
            <sy:updateFrequency>1</sy:updateFrequency>
            <item>
                <title>TITULO POST</title>

                <link>http://www.misitio.com/post.html</link>
                <pubDate>Thu, 24 Sep 2015 04:22:12 +0000</pubDate>
                <dc:creator>cicklow</dc:creator>
                <category>
                    <![CDATA[General]]>
                </category>
                <category>
                    <![CDATA[otra categoria]]>
                </category>

                <guid isPermaLink="false">http://www.misitio.com/post.html</guid>
                <description>
                    <![CDATA[descripcion, solo texto]]>
                </description>

                <content:encoded>
                    <![CDATA[descripcion, permite HTML]]>
                </content:encoded>

                <media:content url="http://www.misitio.com/postimagen.jpg" medium="image" />
            </item>
        </channel>
</rss>