[CarCdr]

This ain't pretty, but it should work...

Modify the template forumhome_forumbit_level2_nopost to output a different <a> tag. The default is to output a tag that points to forumdisplay.php, and in that script it notices that the forum is a link and send an HTTP header to change the LOCATION.

Anway, let's assume you want this only done for a certain forum, say, forumid of 12. In the forumhome_forumbit_level2_nopost template, change the line:

      <a href="forumdisplay.php?$session[sessionurl]f=$forum[forumid]">$forum[title]</a>

to:

      <if condition="$forum['link'] AND $forum['forumid']==12">
          <a href="$forum[link]" target="_blank">$forum[title]</a>
      <else />
          <a href="forumdisplay.php?$session[sessionurl]f=$forum[forumid]">$forum[title]</a>
      </if>