It's Slaughtxoxo's UI, seen it posted before. I know he has it updated for 4.0, saw a forum post about it, but I do not know of a download link besides one he posted on EJ in '09
http://elitistjerks.com/f74/t38099-h...2/#post1254299
Might want to PM him and check, try googling Slaughtxoxo, might find something.