Edited and tested for mybb 1.8x
This will create 4 ad zones.
1. Headerinlude - This if perfect for inline ad systems like Kontera where you need to add script tags inside head.
2. Top Ad - This is in the header template underneath the navigation bar.
3. Inline Ads - These are ads between posts.
4. Footer Ad - This is in the footer template above the bottom navigation bar.
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