No need. I figured it out. I'm an idiot. x_x
For future reference in case other people have the same issue: If you have Freedom as the database WoW Model Viewer pulls from, you can't log into that same client. D'oh.
For future reference in case other people have the same issue: If you have Freedom as the database WoW Model Viewer pulls from, you can't log into that same client. D'oh.