not sure if there is a penalty for entering the wrong password etc, i don't think so though. Would be cool, like maybe save the time/date of the password lockout and then shutdown the computer and keep shutting it back down if a specific time period hasn't passed.
as for the logos, those are just place holder for using your own logo, flash or image based.
Its setup to use the logo clocks from LS3.0 and they can be found here
The reason i say they are only placeholder for this skin is because they weren't created to be that small, if you look at my old skin LS3.0 you'll see they are quite big. At the smaller size they kind get jaggy around the edges a bit.