You can still buy the dress, although you will pay a bit more, at Amazon and Saks Off 5th. Most major retailers carry the brand - Macy's, Lord and Taylor, and Nordstrom are a few - and the dresses are very reasonably priced.
Dress: Anne Klein Lattice Patterned Fit and Flare Dress
Pumps: Manolo Blahnik
Here's a bonus photo featuring Wally, who is home alone this week while Norman is attending his "Board and Train" with Ranger Dog Training.

Our trainer, Ken, who came to our house for several intense sessions a few months ago, recommended the Board and Train as the next option. Norman will be living with him for 1-2 weeks to really drill in some of the exercises, and he's going to try to help Norman gain more confidence around other dogs, among other things. Perhaps if Norman feels more confident at home, he will not feel that Wally is such a threat. We really feel that jealousy is at the root of all these problems.
You can check out some videos of Norman on the company's Facebook page, or view the first video dedicated completely to Norman on YouTube.