Problemas con el theme

[elpeterja]

Pues eso, a ver si alguien de aquí sabe de NUKE y eso, porque tengo un problema con mi theme, puesto que cuando pongo muxa resolucion a la pantalla se ve mal. Lo que quiero es que todo el theme se agrupe en en el centro de la pantalla, dejando márgenes a ambos lados, para ello ayúdenme a modificar el header.html, muxisimas gracias! saludos! aki os lo dejo:

Código:

<table class="bodyline" width="100%" cellspacing="0" cellpadding="0" border="0"> 
<tr> 
<td align="center" valign="top"> 
<table width="100%" border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td><img src="themes/fiblue3d/forums/images/tnav_tl.gif" width="14" height="23" alt="" /></td> 
<td width="100%" class="tbltop">&nbsp;</td> 
<td><img src="themes/fiblue3d/forums/images/tnav_tr.gif" width="15" height="23" alt="" /></td> 
</tr> 
<tr> 
<td class="tblleft">&nbsp;</td> 
<td align="center" class="topbkg"> 
<table width="100%" border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td width="60%" height="120"><a href="index.php"><img src="themes/fiblue3d/forums/images/logo.gif" border="0" alt="$sitename"></a></td> 
<td width="40% height="120">$showbanners &nbsp;</td> 
</tr> 
</table> 
</td> 
<td class="tblright">&nbsp;</td> 
</tr> 
<tr> 
<td><img src="themes/fiblue3d/forums/images/tnav_bl.gif" width="14" height="26" alt="" /></td> 
<td class="tblbot">&nbsp;</td> 
<td><img src="themes/fiblue3d/forums/images/tnav_br.gif" width="15" height="26" alt="" /></td> 
</tr> 
</table> 
<table width="100%" border="0" cellspacing="0" cellpadding="2" class="topnav"> 
<tr> 
<td width="165" nowrap><div align="center"> 
  <font class="content" color="#FFFFFF">$theuser</font></div></td> 
<td nowrap><div align="center"><font class="content">• &nbsp;<a href="index.php">Inicio</a> &nbsp;• &nbsp;<a href="modules.php?name=Downloads">Descargas</a> &nbsp;• &nbsp;<a href="modules.php?name=Your_Account">Tu Cuenta</a> &nbsp;• &nbsp;<a href="modules.php?name=Forums">Foros</a> &nbsp;•</font></div></td> 
<td width="165" nowrap><div align="center"><font class="content"><script type="text/javascript"> 
<!--   // Array ofmonth Names 
var monthNames = new Array( "Enero","Febrero","Marzo","Abril","Mayo","Junio","Julio","Agosto","Septiembre","Octubre","Noviembre","Diciembre"); 
var now = new Date(); 
thisYear = now.getYear(); 
if(thisYear < 1900) {thisYear += 1900}; // corrections if Y2K display problem 
document.write(monthNames[now.getMonth()] + " " + now.getDate() + ", " + thisYear); 
// --> 
  </script> 
</font></div></td> 
</tr> 
</table> 
<table width="100%" border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td><img src="themes/fiblue3d/forums/images/tnav_tl.gif" width="14" height="23" alt="" /></td> 
<td width="100%" class="tbltop">&nbsp;</td> 
<td><img src="themes/fiblue3d/forums/images/tnav_tr.gif" width="15" height="23" alt="" /></td> 
</tr> 
<tr> 
<td class="tblleft">&nbsp;</td> 
<td> 
    <table width="100%" cellpadding="0" cellspacing="0" border="0" align="center"> 
      <tr valign="top"> 
        <td>$public_msg<img src="themes/fiblue3d/forums/images/pixel.gif" width="1" height="1" border="0" alt=""></td> 
</tr></table> 
<table width="100%" cellpadding="0" cellspacing="0" border="0" align="center"> 
<tr valign="top"> 
  <td valign="top" width="7" background="themes/fiblue3d/forums/images/pixel.gif">