AdminCP >> Apppearance >> Widgets
Create a new HTML widget for your ad.
Display in positions = What's new: Overview
That may work. However, you can get a number of additional locations for widgets including extra What's New locations with this addon:
If you got our add-ons on websites other than customizexf.com or xenforo.com, then you got them on pirated sites. If so, we suggest you remove the add-on from the server and download it from the original site. Please, support the developers and...
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