detect guest vs. registered member on vbulletin archive

[boatdesign]

In templates, we can use
<if condition="$show['guest']">
some content for guests only
</if>
to show a block of text to un-registered / un-logged-in users only.

Is there a way to use something similar in the /archive/index.php archive to show a block of text to guests but not to logged-in users?

--------------- Added [DATE]1203058542[/DATE] at [TIME]1203058542[/TIME] ---------------

Sorry - figured it out.

if ($vbulletin->userinfo['userid'] == 0)
{
$output .= "
html here
";
}