Seeding from another location through proxy

[Heli0s]

I'll just skip straight to explaining the problem. I have an account at Xtremespeeds. I refuse to seed at home because it hogs all the bandwidth and it's not exactly T3 over here in the first place...

I have an office at the school I work it that allows me to use a ethernet jack that's not assigned to the network. My question is: Is there a way I can proxy to my home IP and seed using the school's connection?

The machine I'll be using will be running Windows 7.

I apologize if I'm not very clear about what exactly I need help with or if I don't know what I'm talking about.

Thanks for all the help.