I have the widget correctly updating the quantity fields for the two options and it will also update the price displayed on the product page (just as happens when you normally select options). However when the ‘add to cart’ button is hit only the default product price is reflected in the cart.
e.g. $5.00 product, no values on the options = $5.00
$5.00 product with $1 on each option = $7.00
Looking at the data passed to the cart it looks like it’s only the quantities of the product and the attributes that get passed -Magento then pulls the appropriate pricing from the database to make the total in the cart.
Any hints as how to get the value across?