Post Articulate in Wordpress: 404 Error


I am at a loss.  I've read many tutorials but yet cannot find an exact answer.  For starters; I have a website.  I have downloaded several plugins suggested but I keep getting the 404 error when I upload my zip file.

Can someone lead me into a stepped process of how to get this articulate interaction to show up on my page?

I just don't know what I am doing wrong... :(

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