[HELP] I am making a payload, and need help with code

Hello, I am working on a payload for a large model rocket to be launched in 5 days and am new to the Arduino IDE. I have an: accelerometer (adxl345), barometer (BMP085), and humididty sensor (hih-4030). This code I borrowed has a different humidity sensor. All I want to do is take the data and write it to an sd card I have. Here is the code, I just need help changing the DHT sensor to the hih, thanks in advance. (because the code is so long, i cant post in here, instead here is the download)
https://www.dropbox.com/s/zwhu50kgbaw51z7/Totallity.zip

Under Additional Options, you can attach the code.

The DHT library/code needs to be replaced with this:
http://bildr.org/2012/11/hih4030-arduino/

This is a "surgical procedure" since most DHT code is in a DHT library (like DHT11).

Ray