Edit in JSFiddle

$(document).ready(function() {
    $.extend(jQuery.fn.dataTableExt.oSort, {
"date-pt-pre" : function(a) {
var x;
try {
var dateA = a.trim().split("/");
var day = parseInt(dateA[0], 10);
var month = parseInt(dateA[1], 10);
var year = parseInt(dateA[2], 10);
var date = new Date(year, month - 1, day);
    console.log("convertendo a data: " + date);
x = date.getTime();
}
catch (err) {
x = new Date().getTime();
}
return x;
},

"date-pt-asc" : function(a, b) {
return a - b;
},

"date-pt-desc" : function(a, b) {
return b - a;
}
});
    
    
$('#example').dataTable({
        "sPaginationType": "full_numbers",
        "aoColumns": [
    { "sType": "date-pt" },
    null,
    null,
    {"sType" : "numeric"},
    null
                       ] });
});

        <div class="container">
            
<table cellpadding="0" cellspacing="0" border="0" class="dataTable" id="example">
    <thead>
        <tr>
            <th>Data</th>
            <th>Browser</th>
            <th>Platform(s)</th>
            <th>Engine version</th>
            <th>CSS grade</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>05/02/2010</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td> 11</td>
            <td>X</td>
        </tr>
        <tr>
            <td>15/01/2010</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td> 21</td>
            <td>X</td>
        </tr>
        <tr>
            <td>22/01/2010</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td>-4</td>
            <td>X</td>
        </tr>
        <tr>
            <td>10/06/2013</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td> 4</td>
            <td>X</td>
        </tr>
        <tr>
            <td>25/12/2010</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td> 4</td>
            <td>X</td>
        </tr>
        <tr>
            <td>05/01/2010</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td> 4</td>
            <td>X</td>
        </tr>
        
        
    </tbody>
</table>
            
        </div>