What Is ?alexa_ho_am, Is It Duplicated Pages?

I’m on WP 2.9.2

I’ve encountered an instance similar to this thread here, http://www.v7n.com/forums/seo-forum/185122-what-alexa_ho_am.html (there was no fix in that thread).

I noticed this on whosamungus, a lot of this

http://www.domain.com/page/66?alexa_ho_am

seems to come up in the active URLs being browsed by readers. Can this be fixed using All In One SEO?

Thanks