Thank you, that was actually helpful, it assisted me in finding the name of the template that is gone.
The missing template is called BRTL_avatarScaler and is called in the member_view template.
<xen:comment>
<div class="avatarScaler">
<xen:if is="{$visitor.user_id} == {$user.user_id}">
<a class="Av{$user.user_id}l OverlayTrigger" href="{xen:link account/avatar}">
<img src="{xen:helper avatar, $user, l, '', true}" alt="{$user.username}" style="{xen:helper avatarCropCss, $user}" itemprop="photo" />
</a>
<xen:else />
<span class="Av{$user.user_id}l">
<img src="{xen:helper avatar, $user, l, '', true}" alt="{$user.username}" style="{xen:helper avatarCropCss, $user}" itemprop="photo" />
</span>
</xen:if>
</div>
</xen:comment>
<xen:include template="BRTL_avatarScaler" />
But after trying all of your suggestions I still can't locate the BRTL_avatarScaler template.