User blog:GandalfTheGray1/Administrator Rights

I'm at school, and I'm trying to install Java, but I need admin rights. I've been trying to get it intalled, with or without rights, but I have yet to have luck. The situation is: Command Prompts are disabled, the Start> Run is disabled, I'm on XP, I need admin password for Safe Mode. Does anyone know what I can do to get admin rights or intall Java without them? If you know any way how, please tell me.

Thanks.