[OpenAFS] Mac OS 10.5 Leopard's TimeMachine with AFS

[Moritz Bunse]

Hello,

I recently updated my Mac OS to Leopard and installed OpenAFS. I can 
browse my AFS-cell. Now I want to use an AFS-directory as backup directory 
for time machine. I entered

defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 
1

in the command line and now /afs is shown in the backup volume selection 
in Time Machine. I can select it, but the problem I think is, that I do 
not have write access to /afs, only to /afs/cellname/user/username. How 
can I mount this directory as a network device?
There is software at Stanford ( 
http://www.stanford.edu/services/openafs/mac/index.html ) , but it is not 
downloadable!

Thanks in advance,
Moritz