Click Reporting For Flash Banners

Hello ; We are a game company and we make a lot of Flash banners and give advertisement to some websites but we dont know which website is usefull for us , how many times our banners showed (imp) , how many clicks we have... So we want to do something for it. We want to have a script and panel for it. So we can learn easly from which website we got more clicks... For example we make a banner for our game and we put it to 5 different site. But we want to know which website is best for us?