Corel DRAWings

Hello, I am new to this site and Corel DRAWings software.   I have seen the Corel DRAWings 3 and 4 software advertised.   Does anyone know if i need the standard version to begin with or can i purchase the Corel DRAWings 4 software and begin there.    Is this for beginners?  I am a small time business just starting out.  Can you help me?