XFree with Voodoo 5

Hello I've that improvments have just been done for endianess on the
last release of XFree.
 
I have a Pegasos 2 (PowerPC G4) and a Voodoo 5 gfx card with Knoppix
version of Linux.
Today I can't launch X server or to use MacOSX with good colors.
    see : http://www.mail-archive.com/[email protected]/msg06203.html
which seems to be the same problem.
 
So I would like to know if the last version of XFree now corrects this
problem ? (version 4.5.99.11 September 2005)
 
If yes, where can I find a usable version for my Pegasos (ie compiled
for a PowerPC) ?
 
Thanks and best regards.
Geoffrey.