Hi Cleversurvivalist,
I hear ya. They tell you how to install but updating you’ll find nothing. Here’s what you do.
First, I’m assuming you have already downloaded the most up-to-date version, as of this writing, it’s 8.2.
2nd, Login into your WP website dashboard > Plugins > Installed Plugins > WooZone - WooCommerce Amazon Affiliates (WZ AA) and “deactivate” it.
3rd, Now delete it. I know, you’re deleting all the files. Don’t worry, everything you set up will still be there.
4th, Now upload the latest WZ AA plugin, 8.2, and activate it.
And that’s how you update the plugin. I have no clue why they couldn’t have made a simple post in their knowledge base. Good luck.