Mass Product Category Changing

Looking for an easier way of changing multiple product categories? Tired of not being able to change product categories when multiple products are being edited? Well this is the solution! Now you can select multiple products for editing and mass change their categories on the spot. For Magento versions 1.3, 1.4, 1.4.1.1, 1.4.2,1.5, 1.5.1, 1.6.