Installing a page counter script on your own server would be the best plan.. and will not slow down your page loads like an external counter service will.
there is a good list of free and pay scripts here
http://www.hotscripts.com/PHP/Script...rams/Counters/
They also have a big list of hosted counters too
http://www.hotscripts.com/Remotely_Hosted/Counters/
(but I would be very careful if choosing one of these)