Exchanging the avatar in the scores for the XboxGamertag

I would like to know, how or where can I modify the code so instead of the avatar (which my site doesnt use), it uses my code for having an xboxLive Gamercard:

<if condition="$post[field5]">
<iframe src="http://gamercard.xbox.com/$post[field5].card" scrolling="no" frameBorder="0" height="140" width="204">$post[field5]</iframe>
</if>

So instead it shoes the gamercard instead of the ugly "no avatar" icon?

Thanks

[cyberhypnotic]

Try $userinfo[field5] instead of $post[field5].