Thanks to the CB, PodMaster in particular, for showing me I'm an idiot:

All I needed to do was edit the .ppd with:

<CODEBASE HREF="winamp-control.tar.gz" />
[download]

And now it works. Y'all can go home now. :-)

Thanks again,
ibanix

$ echo '$0 & $0 &' > foo; chmod a+x foo; foo;