Lpc2000

I am beginner in LPC2000. I want to ask some questions. Thank you!
1. I wonder whether there's any free software that can be used to 
download programs to the external flash via UART or JTAG?
2. I don't know how to use the ISP protocol provided by Philips, will 
anyone who has written a program to download programs to the external 
flash teach me how to do that, or send me the source code? thanks!