....UNPLUG YOUR UTH PAD RIGHT NOW...

You need some sort of thermostat to regulate that pad. They can reach 140F and burn your snake. If you do not have the money for the thermostat like herpstat; get a hydrofarm one off ebay for 35$. I recommend saving your next paycheck to get at least one of the basic herpstat or equivalent thermostat. The safety of a pet is always the first priority. Next I would check out the How to Set Up a Tank tutorial. This is important as well..
http://ball-pythons.net/forums/showt...ighlight=aaron

I also recommend buying an acurite thermometer from walmart for the hydrometer/thermometer. The ones you have are probably inaccurate if they are analog. With this thermometer you can measure both of the temps on each side of the tank as well as humidity. These are cheap for 15$.

For humidity, I found this extremely helpful. http://ball-pythons.net/forums/showt...tment-Tutorial

You should post a picture of the setup when you fix it all!