Probably not. Permissions are set for a reason-in a school environment it's most likely to keep YOUR stuff from being hosed by other people. And vice-versa, of course, but you would NEVER think of messing with, or even viewing other people's stuff, right?
Seriously, if it's a permissions issue, you CANNOT see the whole drive. Talk to the administrator if you
need to see the rest of the drive and make your case. Maybe they'll give you more access.