Help me with not getting dates even better than I do now. It does wonders for my hacking time.
Seriously, though, look for stuff that doesn't seem to work as intended. Odds are that you are onto something. If it looks like something security-related, write to admin (at) hubski (dot) com (I'm quoting the FAQ here) or make a bugski post for other matters. I think I wrote here something about my process of finding vulnerabilities before, I'll try to find and link it if you are interested. Can't now, I have a class in a few minutes.
EDIT: Well, it seems that the TA uses the schedule as a very loose guideline.
Anyway, here it is: