[Seven Skins]

You need make forums two level deep then use the vsa subforum manager or add the css below to additional.css template. Results can be seen on my site.

Example




CSS:

/* --------------- Subforum Hack --------------- */

.subforums ol.subforumlist {
  float: left;
  width: 100%;
  margin: 0;
  margin-top: 5px;
  padding: 0;
}

.subforumlist li.subforum {
  float: left;
  width: 50%;
  margin: 0;
  padding: 0;
  clear: none;
  padding-bottom: 2px;
  white-space: nowrap;
}

.subforumlistlabel {
  display: none;
}