I don't have that dress, but Dots had a VERY similar dress this season. It's still available on their website in a 2x (priced 24.80 plus 6.99 shipping). I tried it on in the store and it was maybe one of the most flattering dresses I have ever tried on, but needed a 3x for comfort and they were sold out already :(
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http://www.dots.com/product/Plus/Plus-D