I'll go direct to the point, all the iTunes skins on my gallery will NOT be updated.
I know, is sad.
The main reason for this decision is that iTunes interface changed a lot. Some things are smaller, others are bigger, etc. I would have a lot of work adapting all of them to the new look.
I will make new skins for it of course, but I'm not sure if will be possible to create something like Silent Night, since I haven't found a way to change some of iTunes colors. Also, changing a single color can affect different places, so there might be a conflict of colors in a dark skin.
Don't expect any release soon though, I'm working
I decided to do freelance work some months ago, but I'm only now making it "official".
So, if you need a designer for a website or app you're developing, send me a note or an email to firstname.lastname@example.org.
I can design icons, interfaces and even logos if you need.
You can see my work at my portfolio: http://1davi.daportfolio.com/ or at Dribbble: http://dribbble.com/davi
If you enjoy the icons and skins that I make and want to support me, you can buy me a coffee: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=FNQBHG39WHQNJ