You can view the page at http://www.yourplaystationhome.com/content.php/116-EU-New-Lockwood-hair-styles-Heavy-Ink-update
The Lockwood hair is in the wardrobe with all the normal hair so you go to "Your Wardrobe", "Character", "Hair", "Hair Style" and then "Color".
I never actually knew you could change the colors of hair. So, this is kind of like, the most awesome thing ever for me. XD