How do you get doom and bor to work please help!!

Hi all

please could some one tell me how to get doom to run on my psp as all it does is freeze my psp
any help would be very much appreciated as really want to see wat its like.

Also how do i get beats of rage to work how do you set up the folders on the psp as havent a clue

any helpwould be greatfully recieved as this is one of my favourite dreamcast homebrew games the team that made it rock!!!

Thanks in advance and especially to all the talented creators of these games and emulators

JACK BURTON 'ITS ALL IN THE REFLEXES'