I noticed it. A couple of things to consider: Could the log-in dates be based on GMT? Missouri is GMT +6 hrs, IIRC. So she could have logged in the evening of Nov 2--before she went to work and it would register as Nov 3 GMT. (I'm pretty much MySpace ignorant.)
Another thing that I thought is that she might have logged in to see if Rowan had left or sent her a message.
Or maybe she was looking for Chris as he was one of her buddies? Maybe by that time she “knew” something?
I have no idea about myspace times either...just took for granted they were the right times according to time zones.