Custom VIP username color

[TC-Jamech]

Hi everyone,
So I've searched the forums for some sort of custom vip, but no joy. I managed to get hold of a custom VIP script however what gives anyone within the VIP group to change their user rank colour . How do I go about making this possible for usernames too?

This is the script I used for my usergroup (placed in postbit_legacy):

<if condition="is_member_of($post, 14)">
<div style="width: 125px; height: 24px; background: $post[field9]; margin-top: 1px"><img src="customvip.png" style="margin-top: -1px;" /></div>
</if>

And this is the current username field:

<div id="postmenu_$post[postid]">
                    <if condition="$show['profile']">
                    <a class="bigusername" href="member.php?$session[sessionurl]u=$post[userid]">$post[musername]</a>
                    <script type="text/javascript"> vbmenu_register("postmenu_$post[postid]", true); </script>
                    <else />
                    $post[musername]
                    </if>