Sub directory installation with subdomains

Hi guys,

I’ve recently installed WordPress MultiSite with the sub directory setting (because this is what my provider, one.com, supports).

Since I do want to use subdomains I did the following:
wp-config.php [altering this line from false to true]
define( 'SUBDOMAIN_INSTALL', true );

.htaccess [changing it to this]

RewriteEngine On

#rewriting wordpress stuff to the root

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} ^/wp-((content|admin|includes)|((cron|login)\.php))
RewriteCond %{HTTP_HOST} ([a-zA-Z0-9-]+\.([a-z]{2,4})|co\.uk|me\.uk|org\.uk|priv\.no)$
RewriteRule ^(.*)$ http://%1/%{REQUEST_URI} [L,QSA]

#rewriting everying that can't be found to index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

#rewriting everything else to index.php
RewriteCond %{REQUEST_FILENAME} -f
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteCond %{REQUEST_URI} !^/wp-(content|admin|includes|login|cron)(\.php)?
RewriteRule . index.php [L]

It works almost flawless…
the sites that I create end-up nicely to be reachable subdomains. The only problem which is kind of a downer is that /wp-admin isn’t working so I cannot change the site and I’m stuck with the default template 🙂

subdomain.domain.com/wp-admin is now redirecting towards http://www.domain.com/wp-signup.php?.., simply because the ‘page’ does not exist.

My question:
Is there a die-hard .htaccess person who can tell me how I can make sure that wordpress is redirecting this correctly too and my wp-admin is working on the subdomains as well?

I guess if this script works it might be nice for others too 🙂

Thanks in advance,
Marcel