1) we require only the MCU 89C668 and the ISP software WIN ISP or Flash magic to start programming ? along with Max232
2) is there any require to first program some boot loader to the chip and then enabling it to work in ISP mode?
3) Any web site would be help to me .
1) correct, but use FlashMagic
2) no
3) www.esacademy.com re FlashMagic and Philips AN461 re how it is done.

You may also want to visit my user page here <---
re more elegant ways to eneter ISP.

Erik