[Dismounted]

I know what you mean, but since you have no mods, what's the problem with just assigning it? Anyway, try this:

<template name="test" templatetype="template" date="1182869201" username="Makc666" version="1.0.0">
<![CDATA[
<if condition="$show['pmlink']">
<tr><td class="vbmenu_option">Test Pharase</td></tr>
</if>
]]>
</template>

<plugin active="1" executionorder="5">
<title>Test (1)</title>
<hookname>postbit_display_complete</hookname>
<phpcode><![CDATA[if ($post['postcount'] == 1)
{
   eval('$template_hook[postbit_user_popup] .= "' . fetch_template('test') . '";');
}]]>
</phpcode>
</plugin>