Search for other members on the membership page.  At the top of the list there is a search box with the label search members.  Put in information that you know.  Click Twice.

To search the whole web site look for the search symbol in the far upper right hand corner in the header.  Small icon of looking glass.  Click the icon.  Put in any term to search the entire web site for instances of that term.

Only members will have access to member restricted information.