MojoBanner enables you to create weighted banner and image campaigns. The first step BEFORE you setup banners is always to create the banner campaign.

In the banner campaign section, you can allocate a priority number the that campaign based on how much weight you want to give banners in this specific campaign during rotation.

As an example, you have a website about cars. You want to promote two other websites, a car parts website and an oldtimer website.
You want to grant more exposure to banners of the car parts website than to banners of the oldtimer website on average.

The first thing you'll do is to create one campaign for the car parts banners, lets name it 'parts' and one campaign for the oldimer banners, lets name it 'oldtimer'.
If you'll want banners in the parts campaign to appear twice as often as banners from the oldtimer campaign, enter weight '2' for the parts campaign and '1' for the oldtimer campaign.

Your campaigns are created, now proceed with setting up banners and allocating them to the campaigns in the Manage Banners section.