Use this page to set your default .htaccess file for clients sites. This allows you to set 404 / 403 / 500 error pages for newly registered clients so that you can generated cash / traffic from the error pages (or any apache setting your would like your clients to default to) .
Please note the format of this file should be a .htaccess file format, any errors in here will cause newly registered accounts to see a 500 error !