There you go: (I hope you like it, tweak as you wish)
Preview: http://random.7host.com/ng/images/orange_skin.jpg
Download: http://random.7host.com/ng/files/Orange.zip
ok, I searched a little...
In order to add new languages you need to compile it into the SteamUI.dll.
And since thats not possible, I found an easier way-
Just edit one of the files. Don't rename it. Edit whats written in it, and then select the language you edited in Steam.
I can show you one step of making your own language..
A. 1. In the steam folder there is a folder called resources.
In it you got a file platform_english.txt and vgui_english.txt. copy them both, write Norwegian instead of english, and start editing whats inside.
2. Open the folder inside...