I have a recent judgement against my former employer. The judgement is for back wages and damages. They have been out of business for a few months. The corporation had 3 owners. Are they personally liable for payment of the judgement?

The owners are not responsible unless your judgement held them personally liable, If the judgement is just against the corporation then you can only go against it.

Have the went bankrupt ? Does the corporatoin still have money or property it owns, it all makes a difference

Were you an employee or a contractor?
I believe that an employee is first in line as a creditor.
Find out when they filed for bankruptcy (if they did). If they failed to tell you while you were working for them, you may have more grounds.
It's been said that if you throw enough money at a good lawyer, you can get to the people behind the corporation, if they are sitting pretty on a whole lot of assets they drained off before going out of business, or if damages were more than just monetary.