Hello, I need a banner rotation that will track clicks and/or days the person pays for. They also need to be able to login and change thier banner without losing thier current click and/or days they pay for. I would prefer a banner rotation that will automatically stop rotating a banner when they run out of clicks and/or days they purchased until they update their account with another payment. (example: If a person buys 1000 clicks and after they use up 500 they decide to change their banner the next time someone clicks on the new banner it will count it as 501 instead of starting over at 1). It also needs to be able to handle a unlimited number of banners that are different sizes. Please provide a working demo with the admin and user login, so I can take a look at it before I purchase it. Thanks!