[rhody401]

It'll do it if you change the postbit code and insert the trigger(s). I have it display with this mod every 5th post, and also after the last post. This is the code I used, which I believe I found from a previous post in this thread:

PHP Code:

BANNER AFTER LAST POST HACK Added this mod to our forum on 3/1/12 

GO TO: Admin Console -> Styles & Templates -> Style Manager -> edit template ->  postbit templates -> postbit_legacy  

......at the END add this, if you want it to display random ad after the LAST post:

<vb:if condition="$post['islastshown']">
 <div align="center"><!--@vbbanners:0@--></div><br />
</vb:if> 


.....at the VERY END add this:  (puts random ad after 5th and 10th posts)

<vb:if condition="THIS_SCRIPT == 'showthread' AND (($post['postcount'] % 15 == 10) OR $post['postcount'] == 10)">
    <div class="thread_controls">
        <div style="width: 100%; text-align: center">
            <!--@vbbanners:0@-->
        </div>
    </div>
<vb:elseif condition="THIS_SCRIPT == 'showthread' AND (($post['postcount'] % 15 == 5) OR $post['postcount'] == 5)" />
    <div class="thread_controls">
        <div style="width: 100%; text-align: center">
            <!--@vbbanners:0@-->
        </div>
    </div>
</vb:if> 


Hope this is helpful! We LOVE the RBS add-on!