On the main forum page, go down to the "Users Online" area. This where members, guests and "Spiders" can be seen when on line and viewing the forum. The only purpose behind having this feature installed was really for me to see when the major search engines were crawling our forum. Before this installed software, the spiders came up as Guests and I could never figure out why so many people were not logging into the site. This helps differentiate between search engines, members and true guests.
Cheers,
Sean