Custom XMB File Identity?

I let one of my coworkers play with my PSP, and, before I knew what had happened, he had replaced my carefully created custom theme with a Zelda one using a flashing program on his memory stick. I restored my theme without too much trouble, except for one part... whenever I start a UMD or other game application, I get a little loading movie of Link swinging his sword around.

It's not that I don't like Zelda... but I don't want a Nintendo theme on my Sony handheld. Does anyone know which file is responsible for this, or have the default file to replace it with so I can get back to normal?

I'm not sure but I'd like to have the movie of Link load my games..cool.

flash0:/vsh/resource/gameboot.pmf =)

Just replace the gameboot and p.s. tell that uy not to mess with your psp I'd be kinda pissed. Unless you told him to or something.

Do I have to flash and replace or just replace? Does it have to be a certain file size?
My bad for not even knowing about this but thanks alot for the help..