MSP430 university project

- MSP430G2553
- LCD - DEM16216SYH      // connected in 4bit mode
- DS18b20                         //connected in external supply, 1-wire protocol
- PTD                                //connected in 3 pins
- keyboard 3x4                  // connected in 4 pins 
- buzzer                             // connected in 2 pins

I have problems with my project principal, who don't really help me. I have no idea how to construct this project in software base. 
I really will appreciate some help, like advise about the approach. I have the hardware, I have idea how to connect it, I read about that, but the connection depends more or less from the software code. I am not so good to programming a microcontroller. I need some examples, which will work and i can learn from them and developed the whole project on my own. I found for start lib_ds18b20, I plan to connect the sensor + display to MSP430 and try run them with some code examples, may be. I will have work during the week, but next weekend I will spend it entirely to do this.