Help posting/receiving to/from tinywebdb

First i would like to say that i have nearly no programming experience and really need some help. I have been trying to figure out how to get the arduino mega to post the temperature that it reads to a tinywebdb page so that app inventor app can read it. I also need the arduino to pull information off of that website. I am using an arduino mega and an adafruit cc3000 wifi shield. Thanks for any help.