I took a look at the forum archives and found your query from last year regarding tape removal. You’re right, the link no longer works. However, you might try reaching out to Anna Cannizzo. She is the person who created the video at the Denison Museum, however, she no longer works there so you would need to find her contact info on your own.
Or, perhaps you can be a little bit more specific about the type of tape you need to remove. What is the object you are working with, what type of adhesive are you trying to remove?
That way I can point you to the right conservator for any recommendations.