Sue may be back on the 27th, but have not heard for sure.
If you go into google docs signed in under the same email you used on your old machine, you should have an option on the left of the screen that says something like "owned by me". Your SS should be listed there, and all you should have to do is click on it to get to the one you can edit.
I don't know why it is different on the new pc.
If the pm you sent to Sue is still in your outbox, she hasn't read it yet. When it disappears from there, it'll move to your "sent" folder, that means she's read it. I'm sure she'll check her pm's before anything else once she logs on.
Carl
Edit-
I'm not sure, but maybe you have to logout of your google account on the old computer before you can login and edit on the new one?