4
Hmmmm. I can't recall if that version had the site info block available in blocks administration or not.
Go to your administration, blocks, and see if it is available for adding (add blocks) to your current active blocks. If it is add it and set it for visible and the page to be visible on, then check it out. The name Site Info is a little mis-leading. It is actually a Recommend Us type block which allows not only YOU but your users to send an email to their friends Recommending your Site with a link to it as well.
Happy Xooping!
Quest