system account files mystery

Hi,

I've used cygwin before, but for the first time I did mkpasswd and mkgroup and got it so that when go to a cygwin prompt, my id actually shows as my windows username and I end up in /home/myusername. Woohoo.

wait, if I try to vi /etc/sshd_config now I cannot write it, because it is owned by SYSTEM and has restrictive rights.

How do I edit system files now? I don't really grok the permission world in cygwin and how unixy permissions and users map to windows.

Another thing worth mentioning, I am running windows xp sp2 and it is part of a domain. I am a domain user. I am also a member of Administrators on the computer.

Help?