Make Subforum link open in new window

[Wizardjv]

So I been tying to make a subforum that I made into a link forum open in new window. But no matter how I try I cant seem to find the right template to edit.

I figure this code should work. But it doesnt

<a href="forumdisplay.php?$session[sessionurl]f=$forum[forumid]" <if condition="$forum[link] != ''">target="_blank"</if>><b>$forum[title]</b></a>

This is newest version I am talking about.

This is the link I wanna make open in new window.

http://arguecrazy.com/friends-forum/

If you go there you will see the link for the other site. But no matter what edit I cant make it open in new window....Any help would be greatly appreciated

Thank You