Sorry, you cant do it like that without heavy modifing. You are better of installing vl in subfolder like i said and use whatever, plain php file in root of your domain.
Also you cant do such things using a custom page anyway, front or not.
So the easiest thing would be like i said
site.com/vl/
site.com/index.php
In that index.php you copy vl design or use something else.
Code:
<?php
include('vl/ssi.php?num=10');
?>
That you can use to get top 10 members outside of vl directory. But you cannot query 10 premium and 10 normal. just the top10 overall
To style the output is skins/parabola/ssi_top.html and ssi_top_row.html
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If you demand on custom code, it could be doable with VL alone, but requires a plugin made, which i never done for such purposes, so it requires some testing. And unfortunately i cannot do that for free at this time