Fetch the OpenAFS installer package from:

http://www.openafs.org/release/latest.html

Scroll down and grab OpenAFS.pkg.tar.gz for Mac OS X 10.3 (Panther). Stuffit should run and leave you with the package OpenAFS.pkg. Click it to start the installer, and follow the directions.

Now you have to update two files, and restart your computer. The first is /var/db/openafs/etc/ThisCell, and the second is /var/db/openafs/etc/CellServDB .

You can use sudo in a Terminal window like this;

sudo cp ThisCell /var/db/openafs/etc/ThisCell
sudo cp CellServDB /var/db/openafs/etc/CellServDB

sudo will ask for an administrator password the first time. Reboot the computer, login, and cd /afs/cc/home/your-username. Get an AFS token via klog as usual.