OK, I take that back. Using the modified index.template.php file provided in the thread I posted earlier worked for the display of ads in the forum, however, the ad is still showing up twice in the "Ads Management" section. I assume a similar issue with (ads.template.php or admin.template.php??) duplicate code is problem. Unfortunately, I am not that good with php and I don't think it's my place to mess with the ads management author's code.
So, the issue now is duplicate ads being displayed in the forum/index.php?action=admod page.
Koz