1. have my actual desktop oversized by the width of the blue border you see when GF is in windowed mode.
2. open GF ans maually stretch the window until its just big enough to hide the edges off screen.
3. set winamps transparency to about 70 percent. now when you click the winamp icon in your taskbar winamp will appear over the vis but you will also see thru winamp.
you can also set winamp to "always on top" but its not necessary