The links posted here are some great examples of Elevated X transparent tours. They do convert well especially on sites with lots of content and do wonders for SEO.
These tours are available free to any Elevated X CMS user running version 3.1 or later. There's a pretty easy step by step "how to" guide in our knowledge base on how to setup a transparent tour.
If you're not using this tour format yet it's definitely worth giving a try!
AJ