i have been using L10 Hit Counter
it is amazing and has so much detail....and all in flash too...which is nice
here is a demo here
http://www.atmanager.com/L10HC_Reporter.html
and here is the script
http://www.leveltendesign.com/L10Apps/HC/
and i set all the images that it comes with to size 0 pixels, so no image shows up on your site and it still tracks everything