I installed Freebsd for my Ibook last week. Herewith I do :
1. insert FreeBSD 6.0 Installer Cd and reboot Ibook
2. While restart Hold C key
3. then follow the Instruction in install screen
4. I found problem when Installer need to choose media installer because installer cannot found my CDROM
5. I install FTP Server in other PC name ( ftp://192.168.0.1/bsd/).
6. I copy installer cd into folder BSD.
7. in installer I choose my ftp site as installer
8. install are work
after I restart my NEW FreeBSD/PPC that successfull
I will gave the screenshoot soon.