I use this code from this way:
Code:
<if condition="$thread['forumid'] == forumid">
<if condition="$post['postcount'] == 1">
(postbit template)
<else />
(postbit_legacy template)
</if>
<else />
(postbit_legacy template)
</if>
I edit the postbit_legacy template (Admin CP ? vBulletin Options ? Style & Language Settings ? Use Legacy (Vertical) Postbit Template ? (
YES)), and it works perfectly

.