The demo does not work on 3.03 OE-A
It does the white 'PSP bling' screen, the screen goes black, there is some loading and then my PSP shuts down.
FYI I got the demo from the .nl yourpsp site.
I will check with 3.03 OE-A' later to see if it makes any difference.

EDIT: 3.03 OE-A` gives the same result

EDIT2: It works! Silly me, I had to set GAME FOLDER HOMEBREW to 3.03 kernel in the 'hold R at power on'-menu