downloaded adobe reader still wont open document

In a way, that message is correct and in a way it isn't. You may have a high enough version of Reader on your computer but the browser just isn't using it. It is probably using it's own pdf viewer which as you can see, doesn't work for many pdf files (especially forms). To get around this, right-click the link to the pdf file, choose to save it to your computer. Open Reader then use File>Open to open the pdf file.

Open the file in Acrobat Reader, not in a browser.