I just subscribed to this site and I need it for school. What can I do?
A bit more info, please.
What operating system are you using, and which version of Bridge do you need to run?
Actually, if you mean that you subscribed to Creative Cloud (CC), it does specify on the Adobe website which versions of operating system you require. So if an upgrade is out of the question, you might be able to ask for your money back and buy CS6 instead.
http://boblevine.us/is-your-computer-ready-for-adobes-new-creative-cloud-applications/
http://prodesigntools.com/products/adobe-cs6-system-requirements.html