e-commerce Customer choices in invoice

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Hello,
When a product has Customer Choices setup how can I get these to display in the e-mail invoice for the customer and merchant? The choices display OK in the order history.

I'm guessing there is a an array of choices and their values to loop through for each product.

Anyone know what the order object is called?

Reposted from the e-commerce questions page.

Many thanks,

Nathan.

nathanfriend