I think the easiest way would be to amend home.tpl from:
Code:
{* $Id: home.tpl,v 1.39 2002/09/11 11:25:00 zorg Exp $ *}
{ config_load file="$skin_config" }
<html>
<head>
<title>{$lng.txt_site_title}
{if $main eq "catalog"}
{$lng.txt_subtitle_home}
{elseif $main eq "help"}
{$lng.txt_subtitle_help}
{elseif $main eq "cart"}
{$lng.txt_subtitle_cart}
{elseif $main eq "checkout"}
{$lng.txt_subtitle_checkout}
{elseif $main eq "order_message"}
{$lng.txt_subtitle_thankyou}
{/if}
</title>
{ include file="meta.tpl" }
<link rel="stylesheet" href="{$SkinDir}/{#CSSFile#}">
</head>
<body class="background">
{ include file="rectangle_top.tpl" }
{ include file="head.tpl" }
<table border=0 width=100% cellpadding=0 cellspacing=0 align="center">
<tr>
<td class=TableLeft width=150 valign=top>
{ include file="customer/categories.tpl" }
{if $active_modules.Bestsellers ne "" and $config.Modules.bestsellers_menu eq "Y"}
{ include file="modules/Bestsellers/menu_bestsellers.tpl" }
{/if}
{if $active_modules.Gift_Certificates ne ""}
{ include file="modules/Gift_Certificates/gc_menu.tpl" }
{/if}
{ include file="help.tpl" }
</td>
<td width=20></td>
<td valign=top>
{include file="customer/home_main.tpl"}
</td>
<td width=20></td>
<td width=148 valign=top class=TableLeft>
{ include file="customer/menu_cart.tpl" }
{if $login eq "" }
{ include file="auth.tpl" }
{else}
{ include file="authbox.tpl" }
{/if}
{ include file="news.tpl" }
{ include file="poweredby.tpl" }
</td>
</tr>
<tr>
<td class=TableLeft></td>
<td></td>
<td>{ include file="copyright.tpl" }</td>
<td></td>
<td></td>
</tr>
</table>
{ include file="rectangle_bottom.tpl" }
</body>
</html>
to:
Code:
{* $Id: home.tpl,v 1.39 2002/09/11 11:25:00 zorg Exp $ *}
{ config_load file="$skin_config" }
<html>
<head>
<title>{$lng.txt_site_title}
{if $main eq "catalog"}
{$lng.txt_subtitle_home}
{elseif $main eq "help"}
{$lng.txt_subtitle_help}
{elseif $main eq "cart"}
{$lng.txt_subtitle_cart}
{elseif $main eq "checkout"}
{$lng.txt_subtitle_checkout}
{elseif $main eq "order_message"}
{$lng.txt_subtitle_thankyou}
{/if}
</title>
{ include file="meta.tpl" }
{if $cat eq ""}
<link rel="stylesheet" href="{$SkinDir}/{#CSSFile#}">
{elseif $cat eq "put cat number for Nightlife in here"}
<link rel="stylesheet" href="{$SkinDir}/skin2.css">
{elseif $cat eq "put cat number for wedding in here"}
<link rel="stylesheet" href="{$SkinDir}/skin3.css">
{/if}
</head>
<body class="background">
{ include file="rectangle_top.tpl" }
{ include file="head.tpl" }
<table border=0 width=100% cellpadding=0 cellspacing=0 align="center">
<tr>
<td class=TableLeft width=150 valign=top>
{ include file="customer/categories.tpl" }
{if $active_modules.Bestsellers ne "" and $config.Modules.bestsellers_menu eq "Y"}
{ include file="modules/Bestsellers/menu_bestsellers.tpl" }
{/if}
{if $active_modules.Gift_Certificates ne ""}
{ include file="modules/Gift_Certificates/gc_menu.tpl" }
{/if}
{ include file="help.tpl" }
</td>
<td width=20></td>
<td valign=top>
{include file="customer/home_main.tpl"}
</td>
<td width=20></td>
<td width=148 valign=top class=TableLeft>
{ include file="customer/menu_cart.tpl" }
{if $login eq "" }
{ include file="auth.tpl" }
{else}
{ include file="authbox.tpl" }
{/if}
{ include file="news.tpl" }
{ include file="poweredby.tpl" }
</td>
</tr>
<tr>
<td class=TableLeft></td>
<td></td>
<td>{ include file="copyright.tpl" }</td>
<td></td>
<td></td>
</tr>
</table>
{ include file="rectangle_bottom.tpl" }
</body>
</html>
You will need to create two other versions of the skin1.css file and insert the category ids of the two categories that you wanted.