Bu şekilde 3 taneden sonra alta geçmesi gerekir.
Denermisin
<?php

$limit = $this->config['news_block'];
if (!$limit) {
    $limit = 5;
}

$cont = "";
$content = "";
$link_user = $mklib_board->forum_link("profile");



    $query = $DB->query( "SELECT n.id, n.idcategoria, n.idautore, n.titolo, n.autore, n.testo, n.data, n.totalcomm, s.id AS idcat, s.titolo AS titcat, s.icona, n.pinned
    FROM mkp_news AS n
    LEFT JOIN mkp_news_sections AS s ON(s.id = n.idcategoria)
    WHERE n.idcategoria = '2' ORDER BY `id` DESC LIMIT $limit");
$x = 0;
    echo $cont .="<table class=\"tabnews\" align='left' cellspacing=\"0\" cellpadding=\"0\" width=\"33%\">
		<tr>";
    while( $row = $DB->fetch_row($query) ) {
        $idnt = $row['id'];
        $totcomments = $row['totalcomm'];
        $id_orig_name = $row['idautore'];
        $idcategoria = $row['idcategoria'];
        $titolo = stripslashes($row['titolo']);
        $name = $row['autore'];
        $testo = stripslashes($row['testo']);
        if ($this->mkeditor == "BBCODE") {
            $testo = $this->decode_bb($testo);
            $testo = $mklib_board->decode_smilies($testo);
        }
        $sezione = $row['titcat'];
        $cdata = $this->create_date($row['data']);
        $news_words= $this->config['news_words'];
        if ($this->config['news_html']) {
            $testo = str_replace ("<br />", " ", $testo);
            $testo = strip_tags ($testo);
           }
        if ($news_words) {
            $testo = substr ($testo, 0, $news_words);
            $testo .= " ...";
           }

        $cont .= "<td class=\"tdblock\" valign=\"top\"><p style=\"text-align:center\"><a href=\"index.php?ind=news&amp;op=news_show_single&amp;ide={$row['id']}\"><font  color=\"red\" size=\"1pt\">$titolo</font><br /><img src=\"$this->siteurl/mkportal/upload_image/images/$idnt.jpg\" border=\"0\" width=\"165\" height=\"55\" alt=\"$testo\" /><br />$testo</a></p></td>";
		if ($x==3) {
		echo $cont .="</tr><tr>";	
		$x = 0;
		}
    }
	echo $cont .="</tr>   
         </table>";

    $content = "
                <tr>
                  <td class=\"contents\">
                  <div class=\"taburlo\">
                    <table width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"2\">
                      <tr>
                    <td class=\"taburlo\" valign=\"top\">
                    {$cont}
                    </td>
                      </tr>
                    </table>
                  </div>
                  </td>
                      </tr>
                  ";

        unset($cont);
        unset($row);
        unset($idcat);
        unset($categoria);
        unset($idnt);
        unset($query);
        unset($query2);
        unset($totcomments);
        unset($id_orig_name);
        unset($idcategoria);
        unset($titolo);
        unset($name);
        unset($testo);
        unset($sezione);
        unset($cdata);
        unset($news_words);




?>