After many chats to Quark, I finally was able to get a copy of 8.01. It was a long process with several support people claiming they were going to upload it to a FTP site, and then e-mail me with a link. I would never hear from them. I finally got hold of someone there that followed through, but it still took them 5-6 hours to get it ready.
Before the download was ready, we ended up trying each CopyDesk extension individually. There was some confusion between my users and I how many CopyDesk extensions there were. We narrowed it down to the notes.xnt, and my users decided they could live without that extension, so we never even tried 8.01.
Thank you for your help. I have 8.01 downloaded and burned on a CD just in case we find something else that is a problem.