Foren / Cotonti / Support / IF statement in forum posts.tpl

I added the following IF statement to my forums.post.tpl so it displays an add after the second forum post:

<!-- IF {FORUMS_POSTS_ROW_NUM} == 2 -->
bla bla bla
<!-- ENDIF -->

But, it looks pretty bad cause right now there could be 2 adds and a signature on top of eachoter (I also have an add placed at the bottom of forums.post.tpl).
So, I was hoping its possible to change the IF statement so it adds a block to the second post, but only when the total post count in the page is greater than 2.

I tried many different setups of this but I cant figure out how to do it.
I thought this would work but it doesnt:

<!-- IF {FORUMS_POSTS_ROW_NUM} == 2 AND {FORUMS_POSTS_ROW_POSTCOUNT} > 2  -->
bla bla bla
<!-- ENDIF -->

I searched both the Global Tag List as well as the TPL Tags Repository but have no idea what other statements I should use. The only one which works is the "{FORUMS_POSTS_ROW_NUM} == xx" as I use that multiple times.

Anyone here who can help me with this?

Sorry, thats a typo in my above post. It is in uppercase in my tpl.
I will fix my post.

[edit]
Also, I just realisized the "{FORUMS_POSTS_ROW_POSTCOUNT}" refers to a posters postcount, not the count of posts in a single topic page. And again, checking the tags lists there does not seem to be anything counting the posts per page?

Exactly what I needed, works perfectly, even on the next pages of a topic even though "totalposts" implies to me it counts the total posts in a topic rather than the total posts in a single page.

I noticed it was not in the Global Tag List I went through this one and the tags list line by line trying to find something like it.

Thanks for the help

Thanks a lot again for the additional info, very usefull. I wasn't aware I could call any variable like that (when defined).
Lots of opportunities with this

Well, that means you just have to look into the php files to find a variable, right?
You could even use variables which are introduced with plugins.
So, if you need something open the php files and have a look at it. I guess even a noob like me can do that

I see, so if you do not want any performence impact I would have to create template tags of the variables I want to use? This is something I have no idea about so I personally have to stick with the php variables.

I dont think using one php variable in a tpl (like in my above example) has much impact on performance right?
Or does that, like most times just depend on how many requests there are for that tpl?
I had planned to use the same kind of "if statement" for my list.tpl as well.