By default when the VM is created, Folding@home is installed and running with the default user (Anonymous), the default team (0), at medium power, and with no passkey. To configure these parameters, ssh on to the VM and execute the following:
sudo /etc/init.d/FAHClient stop
FAHClient --configure
# enter your desired configuration
# copy/merge this configuration over to /etc/fahclient/config.xml
sudo /etc/init.d/FAHClient start