Formular ausrichten

[Christian]

Moin!

Bastele seit Tagen an meiner Homepage herum. Als Hoster habe ich Strato ausgewählt, von diesen möchte ich auch das Gästebuch benutzen. Hat auch fast alles so geklappt, wie ich das gerne hätte.
ABER: Wie kann man das Formular, welches die Einträge ins Gästebuch generiert, mittig auf der Seite anzeigen lassen?

Hier mal der "Text":

body background="../../bilder/quadrat.gif">
<!-- START preview -->
<style type="text/css">
<!--
-->
</style>

<table width="450" border="0" cellpadding="2" cellspacing="0" align="center">
<tr bgcolor="#FFFFFF"><td colspan="2" class="smallb_top"><div align="left"><b>{subject}</b></div></td>
</tr>
<tr bgcolor="#FFFFFF">
 <td width="99" class="smallb_lcont"><div align="left"><span class="textsmaller">Eingetragen von:</span></div></td>
 <td width="444" class="smallb_rcont"><div align="left"><span class="textsmaller">{name}</span></div></td>
</tr>
<tr bgcolor="#FFFFFF">
 <td class="smallb_lcont"><div align="left"><span class="textsmaller">Email:</span></div></td>
 <td class="smallb_rcont"><div align="left"><span class="textsmaller">{email}</span></div></td>
</tr>
<tr bgcolor="#FFFFFF">
 <td class="smallb_lcont"><div align="left"><span class="textsmaller">Homepage:</span></div></td>
 <td class="smallb_rcont"><div align="left"><span class="textsmaller">{homepage}</span></div></td>
</tr>
<tr bgcolor="#FFFFFF">
 <td class="smallb_lcont"><div align="left"><span class="textsmaller">Datum:</span></div></td>
 <td class="smallb_rcont"><div align="left"><span class="textsmaller">{date}</span></div></td>
</tr>
<tr bgcolor="#FFFFFF"><td colspan="2" class="smallborder"><div align="left">{body}<br/></div></td>
</tr>
<tr bgcolor="#FFFFFF"><td colspan="2">&nbsp;&nbsp;
    <div align="left"></div>
    <div align="left"></div>
    <div align="left"></div></td>
</tr>
</table>

<!-- END preview -->

<!-- START error -->
    <div align="center"><span class="error">{error}</span>
        <!-- END error -->
  </div>

<form action="{form_target}" method="post">
  <div align="center"><img src="../../bilder/ueberschrift_gaestebuch08.gif" width="400" height="30" align="top"><br>
    <br>
    <table width="450" border="0" align="center" cellpadding="10" cellspacing="0" bgcolor="#FFFFFF">
      <tr bgcolor="#FFFFFF">
        <td colspan="3"><div align="left">Titel</div></td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td colspan="3"><div align="left">
            <input type="text" name="subject" value="{subject}" size="32" maxlength="64" />
        </div></td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td colspan="3"><div align="left"></div></td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td colspan="3"><div align="left">Text</div></td>
      </tr>
      <tr bgcolor="#FFFFFF" align="center">
        <td colspan="3"><div align="left">
            <textarea rows="6" cols="48" name="body">{body}</textarea>
        </div></td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td colspan="3"><div align="left"></div></td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td colspan="3"><div align="left">
            <table>
              <tr>
                <td><div align="left">Name:</div></td>
                <td><div align="left">
                    <input type="text" size="16" maxlength="64" name="name" value="{name}"/>
                </div></td>
              </tr>
              <tr>
                <td><div align="left">Email (optional):</div></td>
                <td><div align="left">
                    <input type="text" size="16" maxlength="255" name="email" value="{email}"/>
                </div></td>
              </tr>
              <tr>
                <td><div align="left">Homepage (optional):</div></td>
                <td><div align="left">
                    <input type="text" size="16" maxlength="255" name="homepage" value="{homepage}"/>
                </div></td>
              </tr>
              <tr>
                <td colspan="2"><div align="left">
                    <input type="checkbox" name="preview" value="1" id="label_preview" />
                    <label for="label_preview">&nbsp;Vorschau</label>
                </div></td>
              </tr>
            </table>
        </div></td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td width="157"><div align="left">{captcha} </div></td>
        <td width="157">&nbsp;</td>
      </tr>
      <tr bgcolor="#FFFFFF">
        <td colspan="2"><div align="left">
            <input type="submit" value="Eintrag absenden" />
        </div></td>
        <td width="76">><a href="{backlink}">Abbrechen</a></td>
      </tr>
    </table>
    </div>
  </form>

Habe wirklich alles versucht, was ich mit Google finden konnte... Aber nichts hilft. Weder CSS noch "normales" HTML. Das Formular wird selbst dann leicht nach links verschoben angezeigt, wenn ich es in eine eigentlich zentrierte Tabelle packe...

Wer kann helfen?