Downloads of digital books don't work

When I buy a digital book, I get an email as follows:

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A new order (cd0e78b8c38c) was created in your store:

Order Information:
Items:
Denmark Rising (Paperback): 1 * 1.90 = 1.90 USD
Denmark Rising (Kindle): 1 * 0.95 = 0.95 USD
Download: http://wp.barryclemson.net/mp-store/mp-products/denmark-rising-kindle-2/?orderid=cd0e78b8c38c

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This link takes me to the product page and I get no download.

As per yoiur suggestion, David, I went to the Order Status Page and followed those links. They also take me to the product page and I get no download. A screen shot of the Order Status Page is attached.