How do I fix a coolant problem in a 99 trooper.

What is your question?

The other day my wife told me that my trooper was overheating on the way home. When I check the radiator it was empty, but the over flow was full. My first thought was that the thermostat had gone bad. So I changed the thermostat. Not something that is easy because it is located under the manifold. After a few days, I got the new thermostat in and filled the radiator back up. When I started the car with the radiator cap off and the trooper headed up, coolant started gushing out of the top of the radiator. I would say I put the thermostat in backwards but I took a picture of the thermostat when I before I removed it so that I could make sure it was in correctly. I can still drive the trooper I just need to add coolant (water)every day and it has not over hear on me and I drive it 70 miles to work every day.