I have an antique phone that came with a four prong phone jack. How do I rewire it so it will work with a regular phone jack?

The easiest way to connect it to a standard modular wall jack is with an adapter, like this:

Amazon.com: 4 PRONG TELEPHONE ADAPTER PLUG: Everything Else (http://www.amazon.com/4-PRONG-TELEPHONE-ADAPTER-PLUG/dp/B002OBSD16)