I have the same issue in SMF 2.0 RC 2 and I've posted about it countless times with no help
Here's what happens and the setup -
I use the latest ad management mod and pull ads from essentially two sources - either Amazon, eBay, Google, or through an OpenX server on the same domain and server as the site.
From all of them, ads show up fine on the individual post/topic threads.
None of them show up on the message index
None of them show up on the board index
None of them show up in the welcome area
None of them show up in the site header or footer
Amazon and Google and eBay ads do show up under child boards on sub board indexes, none of the OpenX ads show up there.
I've tried using the OpenX invocation codes in local mode, java mode, html mode etc, with and without cachebuster code, with and without 3rd party server click tracking and so on. All variations are a no show whether the user is guest, regular, moderator, admin, or a group member of one of the groups.
This has been a rolling issue for nearly two years across many SMF 1.1.x versions, and across many versions of Ad Management.
Something in this mod is not working with message, topic, and board index page positions (including sidebar positions) for both direct ad codes (Google etc) and ad codes via our OpenX server.
If I place the OpenX invocation code direct into the theme template files, it works perfectly, in all code languages, in all positions, at all board levels - but it DOES NOT work when used with Ad Management, nor do the direct codes on index pages except under child boards.
Please will someone involved with the mod's code acknowledge this and advise what I can do about it?
Thanks
Gaz