imagenes en horizontal

[monky]

buenos dias

podia alguien hecharme una mano con este codigo y decirme como puedo ver las imagnes en horizontal,por mas vueltas que le doy no soy capaz

Código:

<div style="float:left;width:200px;">
         <?$query4 = "select i.filename as filename, i.tn_filename as tn_filename, i.filepath as filepath, i.added as add_dt, i.ip as ip, i.filesize as filesize, sum(ih.kb) as bandwidth, count( ih.filename ) as ctr from images i left outer join imagehits ih on i.filename = ih.filename where i.prv='0' group by filename order by rand() limit 4";
            $result4 = mysql_query($query4) or die("Query failed4."); while ($line = mysql_fetch_array($result4)) { ?>
         <a href="view.php?filename=<?=$line[filename]?>">
            <img src="<?=$line[filepath].$line[tn_filename]?>" alt="<?=$line[filename]?>" title="<?=$line[filename]?>" border="0" />
         </a>
         <br /><br />
         <?}?>
      </div>

un saludo