Aide modification thème site NK

Bonjour,
J'ai créé un site Nuked Klan dont j'aimerai modifier le thème..

Voici une Screen de ce que je voudrai faire : https://www.hiboox.fr/

Et voici le code HTML codant pour mon thème :

	<div id="gauche">
		<div id="block_gauche">
			<div id="espace_last">
			</div>
			<div id="last_topics">
				<div id="contenu_last_post">
<?php
	echo "
	<table style=\"margin-left:auto;margin-right:auto;width:185px;border:0px;\" cellspacing=\"2\" cellpadding=\"1\">";
		for ( $j = 1; $j <= 5; $j++ )
		{
		$b = $j - 1;
		$sql = mysql_query("SELECT titre, id, forum_id FROM " . $nuked['prefix'] . "_forums_threads ORDER BY id DESC LIMIT " . $b . ", " . $j . "");
		list ( $titre, $id, $forum_id ) = mysql_fetch_row($sql);
		if ( strlen($titre) > 25 ) 
		{ $titre = substr($titre, 0, 25)."..."; }
		echo "
		<tr>
			<td style=\"width:100%;height:0px;padding-left:0px;\"><a href=\"index.php?file=Forum&amp;page=viewtopic&amp;forum_id=" . $forum_id . "&amp;thread_id=" . $id . "\">" . $titre . "</a>
			</td>
		</tr>";
		}
	echo "
	</table>";
?>
				</div>
			</div>
			<div id="last_news">
				<div id="contenu_last_news">
<?php

global $nuked, $file, $language, $user, $bgcolor3, $bgcolor2;
translate("modules/News/lang/" . $language . ".lang.php");
$sql2 = mysql_query("SELECT active FROM " . BLOCK_TABLE . " WHERE bid = '" . $bid . "'");
list($active) = mysql_fetch_array($sql2);
$day = time();
    echo "<table style=\"margin-left: 0px;margin-right: 0px;text-align: left;width:185px; padding-top:0px;border:0px;\" cellspacing=\"2\" cellpadding=\"1\">\n";

    $sql = mysql_query("SELECT id, titre, date, auteur, auteur_id FROM " . NEWS_TABLE . " WHERE " . $day . " >= date ORDER BY date DESC LIMIT 0, 5");
    while (list($news_id, $titre, $date, $autor, $autor_id) = mysql_fetch_array($sql))
    {
        $date = strftime("%x %H:%M", $date);
        $titre = stripslashes($titre);
        $titre = htmlentities($titre);
        $autor = stripslashes($autor);

		if ( strlen($titre) > 27 ) 
		{ $titre = substr($titre, 0, 27)."..."; }

            if ($autor_id != "")
            {
            $sql2 = mysql_query("SELECT pseudo FROM " . USER_TABLE . " WHERE id = '" . $autor_id . "'");
            list($auteur) = mysql_fetch_array($sql2);
            $auteur = stripslashes($auteur);
            } 
            else
            {
                $auteur = $autor;
            } 

  echo "<tr><td style=\"padding-left:0px;\">&nbsp;<a href=\"index.php?file=News&amp;op=index_comment&amp;news_id=" . $news_id . "\">" . $titre . "</a></td>\n"
	. "</tr>\n";
    } 
    echo "</table>\n";
?>
				</div>
			</div>
			<div id="navigation">
				<div id="titre_navigation">
					<div id="contenu_titre_navigation">
						<a href="index.php">
							<script type="text/javascript">
								new objFlash(178, 25, 'themes/Modern_warfare_2/flash/bouton', {flashvars: 'lien=accueil'}).writeIt();
							</script>
						</a>
					</div>
				</div>
				<div id="contenu_navigation">
					<?php include('navigation.php') ?>
				</div>
			</div>
			<?php get_blok('gauche') ; ?>
		</div>
		<div id="dessous_block_gauche"></div>
	</div>


	<div id="header">
		<div id="gametracker_stats">
			<div id="statistiques">
<?php
						$msql[0] = mysql_num_rows(mysql_query("SELECT id FROM " . USER_TABLE));
						$msql[1] = mysql_num_rows(mysql_query("SELECT id FROM " . NEWS_TABLE));
						$msql[2] = mysql_num_rows(mysql_query("SELECT id FROM " . DOWNLOAD_TABLE));
						$msql[3] = mysql_num_rows(mysql_query("SELECT id FROM " . LINKS_TABLE));
						$msql[4] = mysql_num_rows(mysql_query("SELECT id FROM " . FORUM_MESSAGES_TABLE));
						$msql[5] = mysql_num_rows(mysql_query("SELECT sid FROM " . GALLERY_TABLE)); 
						$msql[6] = mysql_num_rows(mysql_query("SELECT id FROM " . GUESTBOOK_TABLE));						
?>
							<script type="text/javascript">
									new objFlash(180, 100, 'themes/Modern_warfare_2/flash/stats', {flashvars: 'membres=<?php echo "Il y a ".encodeVar($msql[0])." membres"; ?>&amp;forum=<?php echo encodeVar($msql[4])." sujet dans le forum"; ?>&amp;telechargements=<?php echo encodeVar($msql[2])." fichiers a telecharger"; ?>&amp;news=<?php echo "Et ".encodeVar($msql[1])." news"; ?>     '}).writeIt();
							</script>
			
			
		</div>
		<div id="banniere_matches">
			<div id="banniere">
				<script type="text/javascript">
					new objFlash(628, 234, 'themes/Modern_warfare_2/flash/header_sp4', {flashvars: 'titre=<?php echo encodeVar($nuked['name']); ?>&amp;slogan=<?php echo encodeVar($nuked['slogan']) ;?>'}).writeIt();
				</script>
			</div>
			<div id="matches">
			</div>
		</div>

	</div>

Merci d'avance