More statistics

[I'm not sure if this is a code or not, but it was my best guess, so if this isn't a coding problem, you can move it]

On the bottom of my forum, it shows all the members who were connected in the last 24 hours. Is there a way to make it show a number of how many, in addition to showing the usernames?
For example:
Users connected in the past 24 hours: 30
Is there a way to make it so it counts guests too, if there is a way to do that?

Another question- is there a way to include the number of bots in your users online thing?