[B]<if test="checkForum:|:$forum_data['id']==1">
whatever code you wnat goes here</if> [/B]
You need to be more clear. Pictures always help.
I believe you are asking how to put something at the bottom of a forum only for a specific forum id.
If this is right acp - look & feel - Forum View - forumIndexTemplate
add this to bottom of template change the 1 to your forum id number.
Code:[B]<if test="checkForum:|:$forum_data['id']==1"> whatever code you wnat goes here</if> [/B]