The only problem I have found with the skin so far is that it doesn't have emoticons. The only way to do them is to remember the name.
Here is the skin:
http://steam.gamebanana.com/guis/28228Edit: Also if you do download this pack I suggest you change ChatDialog.HistoryColor to "133 176 233 255". It keeps the theme while letting you see the chat history. Its in steam.styles in MikuSkin2.0\resource\styles. You can just use notepad++ or something
And to use the emoticons you have to click to the left of the avatar of the person you are talking to. If i find a way to move it I'll let you know