It's not the PSP version, but I thought I'd spread the love.
For those who'd like to see what the original pc-98 corpse party game was like, a fan translation was created. It apparently has some significant differences from the PSP version.
As far as I know, the pc-98 version is a free ware game and this translation was approved by Team GrisGris, so this link should be no problem, I think.