I had Zencart 1.3.8a with a jquery code that throw to "index.php?main_page=product_info&cPath=18&products_id=910&action=add_produc t" a post form with all the variables and text attributes and the shopping cart recieved the data and added it correctly.

Now I'm trying to migrate to Zencart 1.5.1 and I've modified the jquery code with the securityToken, something that before wasn't needed, to do the same add a product through URL "index.php?main_page=product_info&cPath=18&products_id=910&number_of_uploads=0&a ction=add_product".
But now it doesn't work the variables are sent, but the shopping cart tells that there's no product in the basket.

And the question are: Can be done what I'm trying in Zencart 1.5.1?
I'm using these fields of the form:
<input type="hidden" name="securityToken" value="444444"></input>
<input type="hidden" name="id[TEXT_PREFIX9]" value="Text"></input>
<input type="hidden" name="id[TEXT_PREFIX5]" value="_-_-_-_-_-_-_-_-_-_-"></input>
<input type="hidden" name="id[6]" value="22"></input>
<input type="hidden" name="id[8]" value="68"></input>
<input type="hidden" name="id[7]" value="67"></input>
<input type="hidden" name="cart_quantity" value="1"></input>
<input type="hidden" name="products_id" value="286"></input>

Am I missing any field?