Rohit Gupta wrote a basic library for using MMA7361 3axis Accelerometer with Arduino, that is available at Github:

This library helps you to easily play with the almost universal 3 axis accelerometer available in most Hobby markets that is based on Freescale’s MMA7361.
In order to get in working you have to pull-up the sleep pin using a 10K resistor to the 3.3V pin. All other connections are labelled.

Via the contact form.