Banner Ad Code - Where?

OK, SO I want to put a banner ad on a certain forum, I know how to do that.
Question is, WHERE do I put the banner ad, so that its in the right place?
I want the banner to be under the box that has the Welcome, username in it, and under th enotices, if I have any, but above where the forum threads etc are listed. (I attached a image so you can get a idea if what I explained makes 0 sense)

Thanks

 

In your Style Manager open the Ad Location Templates group. Place your code in the 'ad_navbar_below' template.

You may need to adjust the placement of that template, tho, as it I believe that it shows up immediately after your navbar and above any welcome messages. But that will involve editing quite a few templates.

 

Thank you Chani, that worked perfectly and I didn't have to edit any templates