I’m running into a couple problems however.
1) Using the exact same code the homepage portfolio boxes show up and the portfolio page ones are cut off on the right side. Here’s an example: http://nicole.turnystudios.com/boudoir/
The images in the adapt portfolio demo show a width of 210px because the portfolio-thumbnail is set in the page_portfolio file. The image size references the code in the functions.php file (just like the code above) .
Your site shows the images are around 600px in size (the adapt demo has these all set at the same size). So I’m guessing that when you made a duplicate version of the portfolio code, you probably didn’t create the image size in your functions file.