A: The divorce decree is what is controlling in these situations. If it is not included in the decree then you would need to petition to modify in order to get it added. If it is included you would need to file an order to show cause. There very well may be some language in the decree stating that school expenses will be divided evenly but without looking I can't say. If you had an attorney represent you I would contact them for a clearer answer this question.
A: If there was a judgment entered it will be a public record. The easiest way to search the public records is to go to a court house and do search of the parties to the case. Many court houses have computers available which you can search public records like court dockets. If the clerks have time they may help you out with this as well.