[PPC] Extra Repositories in Pangolin

Hi,

I want to know how to add extra repositories in Pangolin, please. My Airport card won't work. I need the firmware and bcm43xx-fwcutter isn't in the apt-get repository. I read this thread and found a solution if I can add extra repositories.

I have a PowerPC G4 iBook 1.25.

Thanks in Advance

fb