Skinning programs like Winamp3

does anyone know how to use the Wasabi engine to skin programs?

Winamp3 is using this engine but can't find any description of the API (or whatever it may be) on the web, the Winamp homepage doesn't have one.
The only hint on the skinning engine that I could find (and only that's why I know it exists and can be used) is a very shor mention in the Winamp3 readme file.

http://www.google.com/search?sourceid=navclient&q=wasabi+skin

Thanks much but this seems to be very tightly Winamp related... mot many clear information on how to use wasabi on own apps.
Anyway, I will have a look at the SDK. Uhm, much work ahead.