This Joomla 1.0 module displays the banner of the banners with the least clicks or least showings (can be configured in the back-end).
In the "least impressions made" mode this module will all advertising banners in equal amounts. It's a modification of Joomla's default banner module: mod_banners.php.
Download: 
mod_db8bannersnotrandom_j10.zip
The module increases the counter Impressions Made (just like the default mod_banners module) and registers the amount of clicks (in Banner component under the column Clicks).