unable to disable flat rate with maximum weight

I have been trying to disable the flat rate shipping module when the weight is over 2 lbs
Here is my code

class flat {
var $code, $title, $description, $icon, $enabled;

// class constructor
function flat() {
global $order, $db , $shipping_weight ;

  $this->code = 'flat';
  $this->title = MODULE_SHIPPING_FLAT_TEXT_TITLE;
  $this->description = MODULE_SHIPPING_FLAT_TEXT_DESCRIPTION;
  $this->sort_order = MODULE_SHIPPING_FLAT_SORT_ORDER;
  $this->icon = '';
  $this->tax_class = MODULE_SHIPPING_FLAT_TAX_CLASS;
  $this->tax_basis = MODULE_SHIPPING_FLAT_TAX_BASIS;

// maximum Shipping Weight: If the shipping weight more than 2lb disable the module
if ($shipping_weight < 2) {
$this->enabled = false;
}

What is this code yeilding?
What file are you hacking it into?
What version of ZC are you working with?
What ver of php?
What version of mysql?

You said you do NOT want Flat Rate flat when shipping weight is > 2 ...

But, your code has this written backwards:

// maximum Shipping Weight: If the shipping weight more than 2lb disable the module
if ($shipping_weight [B]<[/B] 2) {
$this->enabled = false;
} 

Hey Kobra
This is the flat rate module. I am using version 1.3.8. I have the newest php and mysql.

The code is not deactivating it for any shipping weight. I have changed it to >2 and the same issues are coming up.
I thought this was the correct code. I am wondering if I calling for the wrong weight? I have tried $total_weight and $shipping_weight.
Thanks

What are you doing when the weight is over 2 pounds?

Depending upon the answer you have to Kim's question - - You might use the table rate module and set your table

Shipping Table
2:Your_rate,10000:0.00 or???

Table Method
weight

When it goes over 2 pounds it is done by UPS rates only. The UPS rates are always displayed but I don't want the flat rate displayed when under 2 lbs

To be safe and ensure that you have accounted for the Tare Rate, just change the function quote to read:

// class methods
    function quote($method = '') {
      global $order;

// don't show when weight < 2
      $this->quote = array();
      $check_order_weight = round($_SESSION['cart']->show_weight(),9);
      if ($check_order_weight < 2) {
        $this->enabled = false;
      }

      if ($this->enabled) {
        $this->quotes = array('id' => $this->code,
                              'module' => MODULE_SHIPPING_FLAT_TEXT_TITLE,
                              'methods' => array(array('id' => $this->code,
                                                       'title' => MODULE_SHIPPING_FLAT_TEXT_WAY,
                                                       'cost' => MODULE_SHIPPING_FLAT_COST)));
        if ($this->tax_class > 0) {
          $this->quotes['tax'] = zen_get_tax_rate($this->tax_class, $order->delivery['country']['id'], $order->delivery['zone_id']);
        }

        if (zen_not_null($this->icon)) $this->quotes['icon'] = zen_image($this->icon, $this->title);
      }
      return $this->quotes;
    }

If you do not want to use the Tare rate as part of this, then customize the code in the function flat and just before the closing bracket of the function add:

// don't show when weight < 2
      global $shipping_weight;
      $check_order_weight = $shipping_weight;
      if ($check_order_weight < 2) {
        $this->enabled = false;
      }