any one know of a kid monitor program?

Any good Internet security software will have a parental control setting. I'm using Norton 2005 right now and getting ready to get 2006. Like with anything else a few things may slip through the cracks but for the most part it works good, just make sure you use a password so the kids can't turn it off.
Also have your friend watch your internet history. It's at the top of your page. There's a favorites, media, then the round sun dial thing that's your internet history. You have four choices for viewing I have mine setup for ORDER VISITED TODAY so it breaks it down into every web page.
Now if the teens really smart they will just delete the "bad" web sites from the history, but if you then click on one of the other views sometimes you can still bring them up.
Then if the Internet security you use still lets something get by, or you spot a web site in your history that you don't want them on you just ban the site.
Just don't let them know your snooping around. If they ask just say the security updates all the time so it must have spotted something it needed to ban.
I have a 15 and a half and a 14 year old.