thats why i was trying to read the instructions on that method cuz i did not use it...and i noticed the same thing.
so technically do the z4root to backup....then reboot and run the ruu...then start the root process.
i broghut that up earlier "ok did that it also sais if i have tried rooting before it will not work , does z4root(temporary root ) count? or can i proceed" and they told me to continue and if it doesent work run ruu and start over...............how do i run ruuu ???????????