Affiliate Problem

Can you please clarify the install text for the Affiliate plugin.

Are the affiliate files to be installed in both directories that you show in the install text?

I have a WPMU platform, and have them in /public_html/wp-content/mu-plugins. but the install.txt also has instructions for /public_html/wp-content/plugins

What is the way to make this work for WPMU?

This post seems to confuse the issue even more.