Creating new Wordpress sites on reseller - Whats your process?

[bbacarat]

I'm new to reseller hosting and having a nightmare of a time of it so far.

I'm using it to setup numerous wordpress websites.
However every time I set one up it leaves off the subdomain www.

I've added in the following 301 code to my htaccess file and instead of solving the issue it completely strips my websites of the design elements:

here is an example of my current site that is completely screwed.

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And here is the .htaccess code I've entered:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^avatartoys.org.uk
RewriteRule ^(.*)$ http://www.avatartoys.org.uk/$1 [R=permanent,L]

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress