By default, any content (Forum Topics, Characters, House Rules, etc) posted directly from your group's menu will be visible only by members of that group. If you want to show this content to everyone on the site (which we greatly encourage!), there are two ways to do this.

The first and easiest way is to post the content from the "Create Stuff" menu on the left, and not from the group menu. When you do so, at some point on each submission form you will see a "Groups" section. If you leave this alone, then the default target is the entire site. If you want to show just your group, then check that group on the list. If you want to show your group and the rest of the site, check the group and the "Public" box.

The second way is to post it through the Group menu, and make sure to expand the "Groups" section of the publishing form and check the "Public" box there.

If you've posted previously and can't figure it out, you can also ask an admin to change it for you.