How do you get onto messenger at school?

Shouldn't you be focusing on your work..? Anyway, be aware that these methods may get you into "deep s***" with your principal or whoever at your school. The simplest way to get into MSN at school is using a proxy server (e.g. bypassfirewallnow.com), but these only work on weak filters, and nearly all schools (especially secondary) have strong filters which have algorithms that automatically detect and block proxy servers. Really, this is the simplest way that has a 30/70 chance of working, the guaranteed way would be to sneak into the server room at your school and disable the filter, but you just wouldn't.. - Matt. Australia.