we did set up our new website design with Wordpress/Laytheme on one of our three domains www.brightenthecorners.co.uk. For our other two domains we set the path to the same Wordpress/Laytheme folder. So when you also visit use www.brightenthecorners.com or www.brightenthecorners.de you will see the same content as on the .co.uk domain.
Now we want to get rid of our co.uk plus our .de domains and only keep the .com domain. Is there an easy way (this did not work: http://laytheme.com/documentation.html#moving-website) that the wp-admin now runs on http://brightenthecorners.com/wp-admin instead of http://brightenthecorners.co.uk/wp-admin?