The paper I got said a bond should be posted immediately I go to court Monday, so how do I go about this?

You need a lot of money yourself or go to a bail bonding agency. They will post bond for you, at a charge of course, typically 10%. Some courts will take property as bond, depends on the jurisdiction. I once used a house as a bond, knowing that the person I used the bond for would show up for the hearing. No cash was required.