The schematic for ST6220 EPB is not a simple one.I will suggest you to use starter kit for ST622X series.You can use this kit as programmer(for ST620X/1X/2X devices) as well as application board for ST6 Find attached the schematic of ST622X starter kit.And about Winee,you can get the latest version(4.0.2) free from internet(stmcu.com).