That's just how one template put it. If you want to have the category show up where you want it, just chunk this code where you want it to show up:
Code:
{if $story_status eq "published"}
<a href="{$category_published_url}">
{else}
<a href="{$category_queued_url}">
{/if}
{$link_category}</a>
That'll create a link back to the category page, just as if you were using the sidebar link.
You'll have to forgive my messed up English, been figuring out Pligg for the last 4 days, and sleeping intermittently. Need more sleep, fewer coding...thing...deals...