This should work,
Have you tried a batch file that scripts the View Client logon? You can get the parameters from the View 4 Admin Guide:
www.vmware.com/pdf/view40_admin_guide.pdf
Page 115
Just drop the batch file in the startup group of each Client PC and configure them to log in automatically when they start up, then the windows startup folder launches the batch file which calls the view client and the generic user parameters. You're then in your View Desktop.
This sounds more like a kiosk mode of operation but with students it's nearly the same thing.
Mike