Hi Greg, Links should work right now. You can find them "https://support.workfront.com/hc/en-us/articles/360002915233-Installing-and-Updating-the-Desktop-Proofing-Viewer-">here. You can also download and install the app from the launch screen when you open an interactive proof from Workfront.
https://www.screencast.com/t/pk7iaLjVz Andrzej Muca Product Manager Workfront