This is compiled using 10.4 as a min spec, so hopefully it will work on 10.4.x.
It's also compiled as a Universal Binary.
http://www.sendspace.com/file/5thqmf
Let me know if it works, don't have much time to test it right now.
Code:
$ file wbfs
wbfs: Mach-O universal binary with 2 architectures
wbfs (for architecture ppc):ÂÂÂÂMach-O executable ppc
wbfs (for architecture i386):ÂÂÂÂMach-O executable i386
$ ./wbfs
Usage: ./wbfs [-d disk|-p partition]
ÂÂÂÂ ls
ÂÂÂÂ df
ÂÂÂÂ mkhbc
ÂÂÂÂ init
ÂÂÂÂ add (file|id)
ÂÂÂÂ rm (file|id)
ÂÂÂÂ extract (file|id)