You can install NeuroPrice with one click here.
Just remember: NeuroPrice is a Chrome extension, so you'll have to be in the Chrome browser to install.
Once installed, you'll see a NeuroPrice icon in the upper-right corner of your browser.
Click that, and you can login and start using NeuroPrice (on your Amazon Manage Pricing page).
Not sure if you have it installed?
You can see all installed extensions here.
Simple as that.
-Peter Valley & Team Neuro