Step 1: Requirements
Wires and Connectors
Arduino ( Uno or Duemilanove) (mine is Freeduino by Embedded Market, India)
LED and Resistor~220 Ohm for checking program
10 uF Capacitor
You need to have Arduino IDE versions 1.0 or 1.5 are OK.
Download the core files for ATtiny here.
Step 2: Primary Software Setup
Step 3: Programmer Setup
Step 4: Uploading a Program
Step 5: Support
Your LED might be blinking now, if not, check some previous steps you could've messed.
Arduino can be used for the development of the ATtiny2313 limited to some functions:
PWM output, digital output, Serial Communication, Interrupts, Timers, etc.
ATtiny is very god option if you need to control a Servo or just Serial Communication is your aim.