I am using xfire myself, it took me the whole time in the dock always annoyed that this ugly little 32x32 pixel xfire icon will appear when you chat. Since I've created my own views.
The design is very similar to the original, white background and the original colors of the xfire logo. I did the background, however, Plastic. Hope you like it too. In addition, I created an icon in the shape of a balloon.
.ico .png .icns