1. $show['member']
2. $vbulletin->userinfo['posts']
3. $vbulletin->userinfo['languageid']
However they will only have a post count if they are a member so condition # 1 is irrelevant...
So try putting the navbar code in the following condition:
Code:
<if condition="($vbulletin->userinfo['posts'] > 5) AND ($vbulletin->userinfo['languageid'] == 1)">
navbar code
</if>
This assumes the forum's original language was English so the languageid for English should be #1, if another language was the first install it may be a different id number.