how to use crossfire with a proxy

reddeath68

i want to run my cross fire with a proxy so i can play in school i already made it portable so no install needed but anyways i need to know how to configure it with a proxy so it will load is there an interface like with a web browser or a document i need to edit plz help

and for all the smart allics that say wait till you get home i have way to much free time in school i pull of all a's and i never study so i need sumthing fun to do in school

[Greycloak]

I'm not going to allow any discussion on how to use a proxy.