Hi Nate,
It's possible that the assets required by ImageFlow got lost when you reinstalled the operating system. I'd suggest to reinstall ImageFlow Fx: that way you make sure that all required components are there.
The download page for the latest version of ImageFlow Fx is here:
http://www.coremelt.com/products/products-for-final-cut-studio/imageflow-fx...
Let me know if this helped,
Gabe
Noise Industries, LLC