Niente, non c'e' verso di far comportare questa dannata tabella come piacerebbe a me !

codice HTML:
<form method="post" action="index.php?sez=26&amp;azione=modCv&amp;sottoSez=5">

    <table bgcolor="#e8e8e8" cellpadding="4" cellspacing="1" align="center" border="0" width="90%">
        <tr bgcolor="FFFFFF">
            <td align="center" colspan="3">

                <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="10" width="100%">
                    <tr>
                        <td align="center"><span class="normale">Modifica CV utente <b>JOHN.BROWN@GMAIL.COM</b>.<br />I campi contrassegnati con * sono obbligatori</span></td>
                    </tr>
                </table>
    
            </td>
        </tr>
    
        <script type="text/javascript">
    
            function displayForm(c) {
                if (c.value == "1") {
                    document.getElementById("italiano").style.display = 'block';
                    document.getElementById("straniero").style.display = 'none';
                } else if (c.value == "2") {
                    document.getElementById("italiano").style.display = 'none';
                    document.getElementById("straniero").style.display = 'block';
                } else {}
            }
        </script>

        <tr bgcolor="FFFFFF">
            <td width="33%" align="center">

                <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="5" width="100%">
                    <tr>
                        <td align="center"><span class="normale">Nazione *</span></td>
                    </tr>
                </table>

            </td>
            <td width="33%" align="center">

                <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="12" width="100%">
                    <tr>
                        <td align="center"><ul class="form-style-2"><li><input onClick="displayForm(this)" type="radio" name="nazione" value="1" ><span class="normale">&nbsp;Italia&nbsp;&nbsp;&nbsp;&nbsp;</span><input onClick="displayForm(this)" type="radio" name="nazione" value="2"><span class="normale">&nbsp;Estero</span></li></ul></td>
                    </tr>
                </table>
    
            </td>
            <td width="33%" align="center">

                <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="5" width="100%">
                    <tr>
                        <td align="center"><span class="normale">Obbligatorio</span></td>
                    </tr>
                </table>

            </td>
        </tr>
        <tr style="display:none;" id="italiano" bgcolor="FFFFFF">
        <td width="33%" align="center">

            <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="5" width="100%">
                <tr>
                    <td align="center"><span class="normale">Città *</span></td>
                </tr>
            </table>

        </td>
        <td width="33%" align="center">
        
            <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="5" width="100%">
                <tr>
                    <td align="center"><ul class="form-style-2"><li><input type="text" size="40" name="citta" id="citta" value=""></li></ul></td>
                </tr>
            </table>

        </td>
        <td width="33%" align="center">

            <table bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="5" width="100%">
                <tr>
                    <td align="center"><span class="normale">Obbligatorio</span></td>
                </tr>
            </table>

        </td>
    </tr>
</table>

</form>