Using wp-spamfree with supporter-plugins

Has anyone tried using the wp-spamfree plugin for MU? The developer says it's MU compatible but provides no mu-specific install instructions or support, yet.

I seem to have it working but have a question for this forum since I'm using it in conjunction with the Supporter plugin...

I activated the Spamfree plugin sitewide, but plugins are only accessible for our Supporter blogs. So I'm curious if non-supporter blogs will be protected by the Spamfree anti-spam feature.

I'm thinking they will, but just won't have access to the wp-spamfree options or comment form feature since those are only available in the Plugins submenu. Or, am I just wishful thinking and they won't even have the spam protection either?

Thanks for any input.