html 코딩 질문좀 해볼께요

누가 그누보드로 제작하던것을 마무리작업 의뢰 받았는데요
받아서 소스보니
난처하더라구요

<table width="851" border="0" align="center" cellpadding="0" cellspacing="0">
  <tr>
    <td width="800"><img src="/layout/main/main_fla.gif" width="800" height="400"></td>
    <td width="1">&nbsp;</td>
    <td width="50" align="center" valign="top"><img src="/layout/main/main_navi.gif" width="50" height="152"></td>
  </tr>
  <tr><td><td><td>&nbsp;</td></td></td></tr>
  <tr><td><object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=10,0,0,0" width="800" height="40" id="menu_sub_category" align="middle">
        <param name="allowScriptAccess" value="sameDomain" />
        <param name="allowFullScreen" value="false" />
        <param name="movie" value="/flash/menu_sub_category.swf?menu_sub_num=<?=$ca_id?>" />
        <param name="quality" value="high" />
        <param name="bgcolor" value="#ffffff" />
        <embed src="/flash/menu_sub_category.swf" quality="high" bgcolor="#ffffff" width="800" height="40" name="menu_sub_category" align="middle" allowscriptaccess="sameDomain" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.adobe.com/go/getflashplayer" /></embed>
      </object>
  <td><td>&nbsp;</td></td></td></tr>
  <tr><td><td><td>&nbsp;</td></td></td></tr>
  <tr><td><a href="<?=$g4[shop_path]?>/listtype.php?type=1"><img src="/layout/main/new_ico.gif" width="800" height="14" border="0"></a>
  <td><td>&nbsp;</td></td></td></tr>
  <tr><td><td><td>&nbsp;</td></td></td></tr>

이렇게 코딩되어있는데
<tr>안에<td><td><td> 이렇게 반복되어서 모든것을 코딩해놨더라구요.
이런거 수정 다 할려면 완전 바라시인거 같은데 ==;
그냥 냅둬도 큰 문제는 없겠죠?