Postbit modification.

[Railen]

I have vBookie installed. I'd like to add an icon next to a person's name in their postbit if they have the most vCash.

I have an idea of how I want this done, but maybe it's not really the correct way to go about this. Do a:
<if condition="$post['highestvCash']">
<img src="wherever.gif"alt="$vbphrase[vBookie_richest]"/></a>
</if>

I've been digging around the database for a while now, but I just can't seem to figure out how the templates work to implement this. Where do the $show and $post variables get populated so I can get these if statements to work correctly?

If I'm going about this the wrong way, let me know. Thanks.