jQuery Grid Plugin - jqGrid

When i execute this code i was only able to get the data out but is not entering the jqgrid table as i expect can anyone help me out by putting me throguh as sson as possible cos i need to delever the Job today.Thanks will be expecting reply.

class ML2 extends Controller{

var $gsm;
var $keyword = 'ml';
var $email_add;
var $firstname;
var $body;
var $per_page = 50;

    function Ml2()
    {
        parent::Controller();
        $this->load->model('Ml_model');
        $this->load->model('sms_model_reseller');
        //$this = get_instance();
        $this->load->helper('url');
        $this->load->library('session');
        $this->config->item('base_url');
    }

    function index()
    {    
        $data['title'] = 'ME & LECKY | TechClick Limited LongCode System';
        $data['rows'] = $this->Ml_model->get_ml_data('per_page');
        $data['content'] = $this->load->view('ml2_view', $data, TRUE);
        $this->load->view('main', $data);
        echo json_encode($data);
        
        $page = $_GET['page']; // get the requested page
        $limit = $_GET['rows']; // get how many rows we want to have into the grid
        $sidx = $_GET['sidx']; // get index row - i.e. user click to sort
        $sord = $_GET['sord']; // get the direction
        if(!$sidx) $sidx =1;  // connect to the database
        $db = mysql_connect("localhost","root","")
        or die("Connection Error: " . mysql_error());
        
        mysql_select_db($database) or die("Error conecting to db.");
        
        $result = $this->db->query("SELECT * AS numrow FROM ml");
        $row = mysql_fetch_array($result,MYSQL_ASSOC);
        $row = $result->row();
        $count = $row->numrow;
        $count = $row['count'];
        
        if( $count >0 ) {
            $total_pages = ceil($count/$limit);
        }
        else{
            $total_pages = 0;
        }
        
        if ($page > $total_pages) $page=$total_pages;
        
        $start = $limit*$page - $limit; // do not put $limit*($page - 1)
        $result = $this->query("SELECT * FROM ml ORDER BY $numrow LIMIT $start $limit");
        $sql = "SELECT id, gsm, email, firstname,body,date,time FROM  ml,ORDER BY $sidx $sord LIMIT $start , $limit";
        $data->page = $page;
        $data->total = $total_pages;
        $data->records = $count;
        
        $i=0;
        foreach ($result->result() as $nrow)
        {//ID    GSM    EMAIL    FIRSTNAME    BODY    DATE TIME
            $data->nrow[$i]['id']=$nrow[id];
            $data->nrow[$i]['cell']=array($nrow[id],$nrow[gsm],$nrow[email],$nrow[firstname],$nrow[body],$nrow[date_time]);
            $i++;
        }
        echo json_encode($data);
    }
}