Now, apart from the fact that nobody can tell me how they did this, I am wondering about the theme they used.
It is Ocean Mist 1.2 by Ed Merrit (http://www.tenbytwenty.com/products/wordpress-themes/ocean-mist). But this theme is not part of the standard themes available to users on WordPress.com.
Now I want to upgrade their theme to the latest version (Ocean Mist 2.0) but can't find how to do this.
So, could anyone tell me how they might have used a custom theme on a blog hosted at wordpress.com in the first place, and then on how I could change/upgrade it.
Thanks a lot in Advance!