how did you get installer.app on your ipod in the first place? When I did mine, it showed me how to ssh
anyways, here's the command to ssh to your ipod:
(in terminal) for OS X...not sure for Windows. I think it's PuTTY or something
ssh -l root your.ipods.ip.address
replace "your.ipods.ip.address" with your own ip address.
then type alpine to login
i'm not sure how to change the password though. people were saying that it wasn't working or something.