I'm using 5.1.3 A6 and I still cannot get this to display the profile fields, here is the code I am using in the template conversation_fields
Code:
{vb:data userInfo, user, fetchProfileInfo, {vb:raw conversation.userid}}
<vb:if condition="$userInfo['field5']"><li><label>{vb:phrase field5_title}:</label> <span>{vb:raw userInfo.customFields.default.field5_title.val}</span></li></vb:if>
<vb:if condition="$userInfo['field2']"><li><label>{vb:phrase field2_title}:</label> <span>{vb:raw userInfo.customFields.default.field2_title.val}</span></li></vb:if>