The simplest way to install animBot is to drag the file animBot Drag'n Drop Install.mel into Maya's viewport. You can get the installation package at animbot.ca/versions.
Alternatively, you can copy the animBot folder into your maya/scripts folder:
(Mac OS X) $HOME/Library/Preferences/Autodesk/maya/scripts
And run this python code:
import animBot; animBot.welcome()
If you the installation is still not working for you, please read this article.
Enterprise Edition users: Do not follow this installation method, please follow this guide instead.