This site is using a fairly new technology tool called Google Drive.

System requirements and browsers

“To use all of the features of Google Drive and Docs editor, you need to make sure you’re using the right operating system, browser, and enabled cookies and JavaScript on your browser” (https://support.google.com/drive/answer/2375082?hl=en)

What browser is best to use? please use Mozilla Firefox or Google Chrome

Are you using Windows XP with Internet Explorer?

If you are using Windows XP you may have some trouble viewing the documents because Microsoft will not allow you to update Internet Explorer past version 8.  A workaround is to use Google Chrome.  Google Chrome will provide updates for XP through 2015.