wow I never know you could boot of of a server. I run the server in my district and I just have the documents, e-mail, printers, and shared folders on the server. Every computer has its own programs, and a local settings folder for everly user loged in, that folder is local. It contains basicly there visual settings and their desktop thats it.
Out of cureosity by any chace do you know what OS your school's server is runing.