The download location for one of the files in this installer has changed.
from this:
http://download.qt.io/official_releases/qt/5.5/5.5.1/qt-opensource-windows-x86-msvc2010-5.5.1.exe
to this:
http://download.qt.io/archive/qt/5.5/5.5.1/qt-opensource-windows-x86-msvc2010-5.5.1.exe
This is my first time trying to use CrossOver and I don't know enough about how the program works to fix this. I will likely contact support, but wanted others to have some insight into the problem.