The template in this case is the spGroupView.php template. The forum groups are contained in a loop which starts with:

if (sp_has_groups()) : while (sp_loop_groups()) : sp_the_group();

and ends with a corresponding:

endwhile; else:

after the call to section end of ‘group’.

You will probably want to place your ad code just before that endwhile of the group loop. Anything at that point will display after the forum group and before the start of the next.

I’m still not very clear where I should put what code exactly…excuse my lack of knowledge in coding.

The first bit of code you provided is near the beginning of the file while the only place I can find the second bit of code is near the end…there is plenty of code in between.

That’s right. And as I said in post #2, you want tp put your code immediately before that endwhile statement. In other words where marked below:

    sp_SectionEnd('', 'group');
    ### --- your ad code here --- ###
endwhile; else:

Has to be php of course.