You'll see a line printed that says something like <code>inet addr:AAA.BBB.CCC.DDD</code>. That <code>AAA.BBB.CCC.DDD</code> is your guest VM's IP address.
Next install sshd on your ''guest'' OS. On ubuntu, use the command
sudo apt-get install openssh-server
Other distributions require similar commands.
Next, on your linux ''host'', install sshfs. On ubuntu, use the command