[riverpoet]

Wow, can't believe how easy this is (vB 3.5.4)!

Add a PLUG-IN with HOOK LOCATION showthread_query and the following code:

$hook_query_fields = ",customprofilepic.dateline AS profilepicdateline";
$hook_query_joins = "LEFT JOIN " . TABLE_PREFIX . "customprofilepic AS customprofilepic ON(customprofilepic.userid = post.userid)";

In POSTBIT template, add :

<if condition="$post['profilepicdateline']">
<img src="image.php?u=$post[userid]&dateline=$post[profilepicdateline]&type=profile">
</if>

NOTE: This will only work if you're using the database for avatar/profilepic storage!