NUCLEO T1 Winamp Skins

This is my first Winamp skin. I think Winamp is one of the best media player on Windows platform, so I´ve decided I make a skin for this great tool. I´ve tried to make a "full featured skin" - all windows skinned, transparency, cursors etc. That´s the truth, in this case I haven´t focused so much on the design - I´ve just wanted to know, how can I make a working skin for Winamp. The next skin is coming, till then use this.