Mass Product Updater PRO

Hi guys,

Yesterday I've published my first module in the Extensions. Here is the module page in the extensions directory: Mass Product Updater Pro. The price is 13$

I would like to hear any opinion about it.

Here is the general description of the module:

Mass Product Updater Pro module is for shops with big amount of products and big turnover where the prices and quantity are changed often. Instead of open each product to change the price and quantity, this module will give possibility to update price, quantity and product status directly from the product list.

Key Features:

• Key product's attributes are updated – price, quantity, status, product to store link*
• Totally independent, no core files will be overridden
• Ajax data submit – no extra buttons and page refreshes.
• Advanced column filtering – search products with ranges.

Attributes of the product which can be editted with Mass Product Updater Pro:

• Price of the product
• Product quantity
• Product status
• Product to shop relation*

Extra functionality provided from the module:

• Advanced filter for price column (between, greater than, lower than)
• Advanced filter for quantity column (between, greater than, lower than)
• Filter product for specific store*

In order for the extension to start, additional script should be run, to make changes to header.tpl - BulkProductUpdateMain.xml.

The instruction only says:
"VQMOD way (STRONGLY recommended): Use VQMod script BulkProductUpdateMain.xml."

Manually changing the texts in the according files made me reinstall the shop, as something wasnt functioning well (tried on both 1.4.9.5 and 1.5.4.1).

The problem is - with the script copied to the vQmod cache directory and installed and all the files uploaded correspondingly nothing is happening.
Could you please explain how exactly the BulkProductUpdateMain.xml should be "used"?