We¡¯ve progressed through the Contributions to the next step and a search turns up responses, but when we click on the responses we get the 404 Error message, URL not found.? Working with Windows 10 here and the latest version of Chrome so I don¡¯t think I¡¯m out of date.
Under your link, at the bottom of the page printed in blue is the word "Contributions." I think it's also at the top of the page. That takes you right to the Archives where all the information can be found.