having problems flashing from fresh

[mbaseball3]

Im already running fresh 1.1 and im wanting to try the beta 2.0 but am having problems getting there. do i have to do a recovery first? from what i have read is that i have to go thru the same process I did when i flashed to fresh. so when i try to run recovery using pre kitchens auto rooter, phone goes black. power button doesnt work and i have to pull battery. and when i try same process i did the first time to root it i get no where. i use the recovery flasher then do a reboot to hboot, push home and it restarts to the HTC screen where it remains for ever. can i get a step by step of how id flash from already being flashed? something im not getting here....