wow you sure have a lot of different things happening.first the lighting, there are 3 lights on the center panel on lights the top, all the switches the second lights the fan switch, and the third lights where the heater cable lever is, if all three lights are out you may have a bad rheostat, but if only one is out then you have a burned out bulb. When you say stuck in overdrive,if you have an automatic transimission, overdrive is a 4th gear operated with a small button on your shifter, so if you go through 3 gears and the 4th never engages your not stuck in overdrive, you dont have overdrive operating. Is the light on your instrument cluster lit all the time, its either and arrow pointing straight up or it says od-off. if so you may have a faulty od relay. If the light works when you push the button on and off but you dont have 4th gear you probably have a bad solenoid on the trans. The rear dofogger is different too, do you have a wagon or a sedan? need to know that cause they could be different problems.You didnt explain what is happening to your temp guage so i dont know what to tell you there. good luck