I was wondering if there was a tutorial or if someone could tell me how I could remove/filter out bots from my guests online script?

What script are you using? Are you referring to PHPbb?

I am using my own script, its is not phpbb.

Hmm. Well, do you know the bots' ip addresses? Unfortunately, there's not an automatic way to distinguish bots from real people. I'm guessing that your script just takes all users who are online and makes that the users online list. Right? I think you'll have to make your own 'bot filter' to determine what a bot is, then just not have those users appear in your users online list. If you know the bots' ip addresses, just add those to the exclusion list.

Here is a post, with a little modifying, you could use this to flag bots:
http://www.webmaster-talk.com/php-fo...tml#post525177